Home / 469,285.65-647,565.57-288,005.22

Finding the Fourth Proportional to 469,285.65, 647,565.57 and 288,005.22

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Solution

The fourth proportional to 469,285.65, 647,565.57 and 288,005.22 is: 397,417.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,285.65 : 647,565.57 = 288,005.22 : x
  2. Step 2: Convert to fraction form
    469,285.65/647,565.57 = 288,005.22/x
  3. Step 3: Cross multiply
    469,285.65x = 647,565.57 × 288,005.22
  4. Step 4: Simplify right side
    469,285.65x = 186,502,264,452.28
  5. Step 5: Solve for x
    x = 186,502,264,452.28/469,285.65
  6. Step 6: Final answer
    x = 397,417.36

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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.