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Finding the Fourth Proportional to 768,800.88, 1,060,947.09 and 429,281.28

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Solution

The fourth proportional to 768,800.88, 1,060,947.09 and 429,281.28 is: 592,409.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,800.88 : 1,060,947.09 = 429,281.28 : x
  2. Step 2: Convert to fraction form
    768,800.88/1,060,947.09 = 429,281.28/x
  3. Step 3: Cross multiply
    768,800.88x = 1,060,947.09 × 429,281.28
  4. Step 4: Simplify right side
    768,800.88x = 455,444,724,807.48
  5. Step 5: Solve for x
    x = 455,444,724,807.48/768,800.88
  6. Step 6: Final answer
    x = 592,409.21

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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.