Home / 988,421.52-1,482,070.32-389,057.70

Finding the Fourth Proportional to 988,421.52, 1,482,070.32 and 389,057.70

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Solution

The fourth proportional to 988,421.52, 1,482,070.32 and 389,057.70 is: 583,365.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,421.52 : 1,482,070.32 = 389,057.70 : x
  2. Step 2: Convert to fraction form
    988,421.52/1,482,070.32 = 389,057.70/x
  3. Step 3: Cross multiply
    988,421.52x = 1,482,070.32 × 389,057.70
  4. Step 4: Simplify right side
    988,421.52x = 576,610,869,937.46
  5. Step 5: Solve for x
    x = 576,610,869,937.46/988,421.52
  6. Step 6: Final answer
    x = 583,365.35

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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.