Home / 704,624.20-1,056,158.70-389,307.40

Finding the Fourth Proportional to 704,624.20, 1,056,158.70 and 389,307.40

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Solution

The fourth proportional to 704,624.20, 1,056,158.70 and 389,307.40 is: 583,531.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,624.20 : 1,056,158.70 = 389,307.40 : x
  2. Step 2: Convert to fraction form
    704,624.20/1,056,158.70 = 389,307.40/x
  3. Step 3: Cross multiply
    704,624.20x = 1,056,158.70 × 389,307.40
  4. Step 4: Simplify right side
    704,624.20x = 411,170,397,484.38
  5. Step 5: Solve for x
    x = 411,170,397,484.38/704,624.20
  6. Step 6: Final answer
    x = 583,531.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.