Home / 726,444.30-1,089,666.45-558,288.30

Finding the Fourth Proportional to 726,444.30, 1,089,666.45 and 558,288.30

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Solution

The fourth proportional to 726,444.30, 1,089,666.45 and 558,288.30 is: 837,432.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,444.30 : 1,089,666.45 = 558,288.30 : x
  2. Step 2: Convert to fraction form
    726,444.30/1,089,666.45 = 558,288.30/x
  3. Step 3: Cross multiply
    726,444.30x = 1,089,666.45 × 558,288.30
  4. Step 4: Simplify right side
    726,444.30x = 608,348,029,937.54
  5. Step 5: Solve for x
    x = 608,348,029,937.54/726,444.30
  6. Step 6: Final answer
    x = 837,432.45

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Double scale
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Similar ratio
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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.