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Finding the Fourth Proportional to 521,754.40, 732,030.80 and 521,754.40

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Solution

The fourth proportional to 521,754.40, 732,030.80 and 521,754.40 is: 732,030.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,754.40 : 732,030.80 = 521,754.40 : x
  2. Step 2: Convert to fraction form
    521,754.40/732,030.80 = 521,754.40/x
  3. Step 3: Cross multiply
    521,754.40x = 732,030.80 × 521,754.40
  4. Step 4: Simplify right side
    521,754.40x = 381,940,290,835.52
  5. Step 5: Solve for x
    x = 381,940,290,835.52/521,754.40
  6. Step 6: Final answer
    x = 732,030.80

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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.