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Finding the Fourth Proportional to 472,779.65, 652,553.62 and 291,640.16

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Solution

The fourth proportional to 472,779.65, 652,553.62 and 291,640.16 is: 402,536.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,779.65 : 652,553.62 = 291,640.16 : x
  2. Step 2: Convert to fraction form
    472,779.65/652,553.62 = 291,640.16/x
  3. Step 3: Cross multiply
    472,779.65x = 652,553.62 × 291,640.16
  4. Step 4: Simplify right side
    472,779.65x = 190,310,843,047.66
  5. Step 5: Solve for x
    x = 190,310,843,047.66/472,779.65
  6. Step 6: Final answer
    x = 402,536.03

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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.