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Finding the Fourth Proportional to 583,804.40, 875,641.80 and 478,439.60

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Solution

The fourth proportional to 583,804.40, 875,641.80 and 478,439.60 is: 717,606.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,804.40 : 875,641.80 = 478,439.60 : x
  2. Step 2: Convert to fraction form
    583,804.40/875,641.80 = 478,439.60/x
  3. Step 3: Cross multiply
    583,804.40x = 875,641.80 × 478,439.60
  4. Step 4: Simplify right side
    583,804.40x = 418,941,712,535.28
  5. Step 5: Solve for x
    x = 418,941,712,535.28/583,804.40
  6. Step 6: Final answer
    x = 717,606.30

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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.