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Finding the Fourth Proportional to 632,602.88, 872,984.20 and 346,118.88

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Solution

The fourth proportional to 632,602.88, 872,984.20 and 346,118.88 is: 477,639.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,602.88 : 872,984.20 = 346,118.88 : x
  2. Step 2: Convert to fraction form
    632,602.88/872,984.20 = 346,118.88/x
  3. Step 3: Cross multiply
    632,602.88x = 872,984.20 × 346,118.88
  4. Step 4: Simplify right side
    632,602.88x = 302,156,313,561.70
  5. Step 5: Solve for x
    x = 302,156,313,561.70/632,602.88
  6. Step 6: Final answer
    x = 477,639.80

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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.