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Finding the Fourth Proportional to 521,742.70, 732,539.30 and 521,742.70

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Solution

The fourth proportional to 521,742.70, 732,539.30 and 521,742.70 is: 732,539.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,742.70 : 732,539.30 = 521,742.70 : x
  2. Step 2: Convert to fraction form
    521,742.70/732,539.30 = 521,742.70/x
  3. Step 3: Cross multiply
    521,742.70x = 732,539.30 × 521,742.70
  4. Step 4: Simplify right side
    521,742.70x = 382,197,032,238.11
  5. Step 5: Solve for x
    x = 382,197,032,238.11/521,742.70
  6. Step 6: Final answer
    x = 732,539.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.