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Finding the Fourth Proportional to 584,420.40, 876,630.60 and 303,901.20

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Solution

The fourth proportional to 584,420.40, 876,630.60 and 303,901.20 is: 455,851.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,420.40 : 876,630.60 = 303,901.20 : x
  2. Step 2: Convert to fraction form
    584,420.40/876,630.60 = 303,901.20/x
  3. Step 3: Cross multiply
    584,420.40x = 876,630.60 × 303,901.20
  4. Step 4: Simplify right side
    584,420.40x = 266,409,091,296.72
  5. Step 5: Solve for x
    x = 266,409,091,296.72/584,420.40
  6. Step 6: Final answer
    x = 455,851.80

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.