Home / 1,178,565.24-1,626,420.30-642,021.24

Finding the Fourth Proportional to 1,178,565.24, 1,626,420.30 and 642,021.24

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Solution

The fourth proportional to 1,178,565.24, 1,626,420.30 and 642,021.24 is: 885,989.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,565.24 : 1,626,420.30 = 642,021.24 : x
  2. Step 2: Convert to fraction form
    1,178,565.24/1,626,420.30 = 642,021.24/x
  3. Step 3: Cross multiply
    1,178,565.24x = 1,626,420.30 × 642,021.24
  4. Step 4: Simplify right side
    1,178,565.24x = 1,044,196,377,767.17
  5. Step 5: Solve for x
    x = 1,044,196,377,767.17/1,178,565.24
  6. Step 6: Final answer
    x = 885,989.46

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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.