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Finding the Fourth Proportional to 472,779.23, 652,422.42 and 257,919.24

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Solution

The fourth proportional to 472,779.23, 652,422.42 and 257,919.24 is: 355,921.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,779.23 : 652,422.42 = 257,919.24 : x
  2. Step 2: Convert to fraction form
    472,779.23/652,422.42 = 257,919.24/x
  3. Step 3: Cross multiply
    472,779.23x = 652,422.42 × 257,919.24
  4. Step 4: Simplify right side
    472,779.23x = 168,272,294,227.47
  5. Step 5: Solve for x
    x = 168,272,294,227.47/472,779.23
  6. Step 6: Final answer
    x = 355,921.50

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1.5x scale

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.