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Finding the Fourth Proportional to 472,795.68, 652,341.48 and 288,987.24

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Solution

The fourth proportional to 472,795.68, 652,341.48 and 288,987.24 is: 398,731.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,795.68 : 652,341.48 = 288,987.24 : x
  2. Step 2: Convert to fraction form
    472,795.68/652,341.48 = 288,987.24/x
  3. Step 3: Cross multiply
    472,795.68x = 652,341.48 × 288,987.24
  4. Step 4: Simplify right side
    472,795.68x = 188,518,363,842.72
  5. Step 5: Solve for x
    x = 188,518,363,842.72/472,795.68
  6. Step 6: Final answer
    x = 398,731.15

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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.