Home / 879,951.52-1,214,351.28-497,978.20

Finding the Fourth Proportional to 879,951.52, 1,214,351.28 and 497,978.20

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Solution

The fourth proportional to 879,951.52, 1,214,351.28 and 497,978.20 is: 687,220.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,951.52 : 1,214,351.28 = 497,978.20 : x
  2. Step 2: Convert to fraction form
    879,951.52/1,214,351.28 = 497,978.20/x
  3. Step 3: Cross multiply
    879,951.52x = 1,214,351.28 × 497,978.20
  4. Step 4: Simplify right side
    879,951.52x = 604,720,464,582.10
  5. Step 5: Solve for x
    x = 604,720,464,582.10/879,951.52
  6. Step 6: Final answer
    x = 687,220.21

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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.