Home / 747,888.82-1,031,972.65-421,184.64

Finding the Fourth Proportional to 747,888.82, 1,031,972.65 and 421,184.64

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Solution

The fourth proportional to 747,888.82, 1,031,972.65 and 421,184.64 is: 581,170.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,888.82 : 1,031,972.65 = 421,184.64 : x
  2. Step 2: Convert to fraction form
    747,888.82/1,031,972.65 = 421,184.64/x
  3. Step 3: Cross multiply
    747,888.82x = 1,031,972.65 × 421,184.64
  4. Step 4: Simplify right side
    747,888.82x = 434,651,029,080.10
  5. Step 5: Solve for x
    x = 434,651,029,080.10/747,888.82
  6. Step 6: Final answer
    x = 581,170.65

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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.