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Finding the Fourth Proportional to 586,420.80, 878,464.80 and 544,430.40

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Solution

The fourth proportional to 586,420.80, 878,464.80 and 544,430.40 is: 815,562.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,420.80 : 878,464.80 = 544,430.40 : x
  2. Step 2: Convert to fraction form
    586,420.80/878,464.80 = 544,430.40/x
  3. Step 3: Cross multiply
    586,420.80x = 878,464.80 × 544,430.40
  4. Step 4: Simplify right side
    586,420.80x = 478,262,942,449.92
  5. Step 5: Solve for x
    x = 478,262,942,449.92/586,420.80
  6. Step 6: Final answer
    x = 815,562.72

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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.