Home / 579,473.20-869,209.80-549,948.70

Finding the Fourth Proportional to 579,473.20, 869,209.80 and 549,948.70

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Solution

The fourth proportional to 579,473.20, 869,209.80 and 549,948.70 is: 824,923.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,473.20 : 869,209.80 = 549,948.70 : x
  2. Step 2: Convert to fraction form
    579,473.20/869,209.80 = 549,948.70/x
  3. Step 3: Cross multiply
    579,473.20x = 869,209.80 × 549,948.70
  4. Step 4: Simplify right side
    579,473.20x = 478,020,799,537.26
  5. Step 5: Solve for x
    x = 478,020,799,537.26/579,473.20
  6. Step 6: Final answer
    x = 824,923.05

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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.