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Finding the Fourth Proportional to 584,860.80, 877,291.20 and 210,921.60

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Solution

The fourth proportional to 584,860.80, 877,291.20 and 210,921.60 is: 316,382.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,860.80 : 877,291.20 = 210,921.60 : x
  2. Step 2: Convert to fraction form
    584,860.80/877,291.20 = 210,921.60/x
  3. Step 3: Cross multiply
    584,860.80x = 877,291.20 × 210,921.60
  4. Step 4: Simplify right side
    584,860.80x = 185,039,663,569.92
  5. Step 5: Solve for x
    x = 185,039,663,569.92/584,860.80
  6. Step 6: Final answer
    x = 316,382.40

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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.