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Finding the Fourth Proportional to 768,803.38, 1,060,950.54 and 429,283.78

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Solution

The fourth proportional to 768,803.38, 1,060,950.54 and 429,283.78 is: 592,412.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,803.38 : 1,060,950.54 = 429,283.78 : x
  2. Step 2: Convert to fraction form
    768,803.38/1,060,950.54 = 429,283.78/x
  3. Step 3: Cross multiply
    768,803.38x = 1,060,950.54 × 429,283.78
  4. Step 4: Simplify right side
    768,803.38x = 455,448,858,204.24
  5. Step 5: Solve for x
    x = 455,448,858,204.24/768,803.38
  6. Step 6: Final answer
    x = 592,412.66

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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.