Home / 726,000.56-1,001,904.96-399,327.36

Finding the Fourth Proportional to 726,000.56, 1,001,904.96 and 399,327.36

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Solution

The fourth proportional to 726,000.56, 1,001,904.96 and 399,327.36 is: 551,085.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,000.56 : 1,001,904.96 = 399,327.36 : x
  2. Step 2: Convert to fraction form
    726,000.56/1,001,904.96 = 399,327.36/x
  3. Step 3: Cross multiply
    726,000.56x = 1,001,904.96 × 399,327.36
  4. Step 4: Simplify right side
    726,000.56x = 400,088,062,647.71
  5. Step 5: Solve for x
    x = 400,088,062,647.71/726,000.56
  6. Step 6: Final answer
    x = 551,085.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.