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Finding the Fourth Proportional to 472,748.33, 652,390.40 and 257,886.52

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Solution

The fourth proportional to 472,748.33, 652,390.40 and 257,886.52 is: 355,882.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,748.33 : 652,390.40 = 257,886.52 : x
  2. Step 2: Convert to fraction form
    472,748.33/652,390.40 = 257,886.52/x
  3. Step 3: Cross multiply
    472,748.33x = 652,390.40 × 257,886.52
  4. Step 4: Simplify right side
    472,748.33x = 168,242,688,951.15
  5. Step 5: Solve for x
    x = 168,242,688,951.15/472,748.33
  6. Step 6: Final answer
    x = 355,882.14

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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.