Home / 947,423.76-1,307,441.52-517,707.60

Finding the Fourth Proportional to 947,423.76, 1,307,441.52 and 517,707.60

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Solution

The fourth proportional to 947,423.76, 1,307,441.52 and 517,707.60 is: 714,434.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,423.76 : 1,307,441.52 = 517,707.60 : x
  2. Step 2: Convert to fraction form
    947,423.76/1,307,441.52 = 517,707.60/x
  3. Step 3: Cross multiply
    947,423.76x = 1,307,441.52 × 517,707.60
  4. Step 4: Simplify right side
    947,423.76x = 676,872,411,459.55
  5. Step 5: Solve for x
    x = 676,872,411,459.55/947,423.76
  6. Step 6: Final answer
    x = 714,434.70

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.