Home / 578,428.80-867,643.20-508,444.80

Finding the Fourth Proportional to 578,428.80, 867,643.20 and 508,444.80

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Solution

The fourth proportional to 578,428.80, 867,643.20 and 508,444.80 is: 762,667.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,428.80 : 867,643.20 = 508,444.80 : x
  2. Step 2: Convert to fraction form
    578,428.80/867,643.20 = 508,444.80/x
  3. Step 3: Cross multiply
    578,428.80x = 867,643.20 × 508,444.80
  4. Step 4: Simplify right side
    578,428.80x = 441,148,673,295.36
  5. Step 5: Solve for x
    x = 441,148,673,295.36/578,428.80
  6. Step 6: Final answer
    x = 762,667.20

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Similar ratio
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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.