Home / 579,472.20-869,208.30-549,947.70

Finding the Fourth Proportional to 579,472.20, 869,208.30 and 549,947.70

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Solution

The fourth proportional to 579,472.20, 869,208.30 and 549,947.70 is: 824,921.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,472.20 : 869,208.30 = 549,947.70 : x
  2. Step 2: Convert to fraction form
    579,472.20/869,208.30 = 549,947.70/x
  3. Step 3: Cross multiply
    579,472.20x = 869,208.30 × 549,947.70
  4. Step 4: Simplify right side
    579,472.20x = 478,019,105,405.91
  5. Step 5: Solve for x
    x = 478,019,105,405.91/579,472.20
  6. Step 6: Final answer
    x = 824,921.55

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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.