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Finding the Fourth Proportional to 768,698.87, 1,060,734.62 and 429,104.63

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Solution

The fourth proportional to 768,698.87, 1,060,734.62 and 429,104.63 is: 592,125.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,698.87 : 1,060,734.62 = 429,104.63 : x
  2. Step 2: Convert to fraction form
    768,698.87/1,060,734.62 = 429,104.63/x
  3. Step 3: Cross multiply
    768,698.87x = 1,060,734.62 × 429,104.63
  4. Step 4: Simplify right side
    768,698.87x = 455,166,132,412.38
  5. Step 5: Solve for x
    x = 455,166,132,412.38/768,698.87
  6. Step 6: Final answer
    x = 592,125.41

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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.