Home / 947,379.79-1,307,345.56-517,674.79

Finding the Fourth Proportional to 947,379.79, 1,307,345.56 and 517,674.79

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Solution

The fourth proportional to 947,379.79, 1,307,345.56 and 517,674.79 is: 714,370.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,379.79 : 1,307,345.56 = 517,674.79 : x
  2. Step 2: Convert to fraction form
    947,379.79/1,307,345.56 = 517,674.79/x
  3. Step 3: Cross multiply
    947,379.79x = 1,307,345.56 × 517,674.79
  4. Step 4: Simplify right side
    947,379.79x = 676,779,838,230.43
  5. Step 5: Solve for x
    x = 676,779,838,230.43/947,379.79
  6. Step 6: Final answer
    x = 714,370.15

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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.