Home / 1,205,355.48-1,663,280.59-715,240.53

Finding the Fourth Proportional to 1,205,355.48, 1,663,280.59 and 715,240.53

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Solution

The fourth proportional to 1,205,355.48, 1,663,280.59 and 715,240.53 is: 986,966.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,355.48 : 1,663,280.59 = 715,240.53 : x
  2. Step 2: Convert to fraction form
    1,205,355.48/1,663,280.59 = 715,240.53/x
  3. Step 3: Cross multiply
    1,205,355.48x = 1,663,280.59 × 715,240.53
  4. Step 4: Simplify right side
    1,205,355.48x = 1,189,645,690,730.31
  5. Step 5: Solve for x
    x = 1,189,645,690,730.31/1,205,355.48
  6. Step 6: Final answer
    x = 986,966.68

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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.