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Finding the Fourth Proportional to 576,999.60, 865,499.40 and 549,443.40

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Solution

The fourth proportional to 576,999.60, 865,499.40 and 549,443.40 is: 824,165.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,999.60 : 865,499.40 = 549,443.40 : x
  2. Step 2: Convert to fraction form
    576,999.60/865,499.40 = 549,443.40/x
  3. Step 3: Cross multiply
    576,999.60x = 865,499.40 × 549,443.40
  4. Step 4: Simplify right side
    576,999.60x = 475,542,933,033.96
  5. Step 5: Solve for x
    x = 475,542,933,033.96/576,999.60
  6. Step 6: Final answer
    x = 824,165.10

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1.5x scale

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.