Home / 947,285.52-1,307,238.57-517,556.40

Finding the Fourth Proportional to 947,285.52, 1,307,238.57 and 517,556.40

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Solution

The fourth proportional to 947,285.52, 1,307,238.57 and 517,556.40 is: 714,219.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,285.52 : 1,307,238.57 = 517,556.40 : x
  2. Step 2: Convert to fraction form
    947,285.52/1,307,238.57 = 517,556.40/x
  3. Step 3: Cross multiply
    947,285.52x = 1,307,238.57 × 517,556.40
  4. Step 4: Simplify right side
    947,285.52x = 676,569,688,230.35
  5. Step 5: Solve for x
    x = 676,569,688,230.35/947,285.52
  6. Step 6: Final answer
    x = 714,219.39

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.