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Finding the Fourth Proportional to 768,918.20, 1,060,318.14 and 510,701.54

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Solution

The fourth proportional to 768,918.20, 1,060,318.14 and 510,701.54 is: 704,244.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,918.20 : 1,060,318.14 = 510,701.54 : x
  2. Step 2: Convert to fraction form
    768,918.20/1,060,318.14 = 510,701.54/x
  3. Step 3: Cross multiply
    768,918.20x = 1,060,318.14 × 510,701.54
  4. Step 4: Simplify right side
    768,918.20x = 541,506,101,686.35
  5. Step 5: Solve for x
    x = 541,506,101,686.35/768,918.20
  6. Step 6: Final answer
    x = 704,244.10

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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.