Home / 1,223,148.66-1,687,898.86-679,319.47

Finding the Fourth Proportional to 1,223,148.66, 1,687,898.86 and 679,319.47

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Solution

The fourth proportional to 1,223,148.66, 1,687,898.86 and 679,319.47 is: 937,435.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,148.66 : 1,687,898.86 = 679,319.47 : x
  2. Step 2: Convert to fraction form
    1,223,148.66/1,687,898.86 = 679,319.47/x
  3. Step 3: Cross multiply
    1,223,148.66x = 1,687,898.86 × 679,319.47
  4. Step 4: Simplify right side
    1,223,148.66x = 1,146,622,553,070.76
  5. Step 5: Solve for x
    x = 1,146,622,553,070.76/1,223,148.66
  6. Step 6: Final answer
    x = 937,435.15

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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.