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Finding the Fourth Proportional to 658,501.60, 987,752.40 and 651,503.20

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Solution

The fourth proportional to 658,501.60, 987,752.40 and 651,503.20 is: 977,254.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,501.60 : 987,752.40 = 651,503.20 : x
  2. Step 2: Convert to fraction form
    658,501.60/987,752.40 = 651,503.20/x
  3. Step 3: Cross multiply
    658,501.60x = 987,752.40 × 651,503.20
  4. Step 4: Simplify right side
    658,501.60x = 643,523,849,407.68
  5. Step 5: Solve for x
    x = 643,523,849,407.68/658,501.60
  6. Step 6: Final answer
    x = 977,254.80

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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.