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Finding the Fourth Proportional to 651,805.40, 977,708.10 and 494,341.40

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Solution

The fourth proportional to 651,805.40, 977,708.10 and 494,341.40 is: 741,512.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,805.40 : 977,708.10 = 494,341.40 : x
  2. Step 2: Convert to fraction form
    651,805.40/977,708.10 = 494,341.40/x
  3. Step 3: Cross multiply
    651,805.40x = 977,708.10 × 494,341.40
  4. Step 4: Simplify right side
    651,805.40x = 483,321,590,945.34
  5. Step 5: Solve for x
    x = 483,321,590,945.34/651,805.40
  6. Step 6: Final answer
    x = 741,512.10

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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.