Home / 407,437.28-611,146.32-240,019.36

Finding the Fourth Proportional to 407,437.28, 611,146.32 and 240,019.36

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Solution

The fourth proportional to 407,437.28, 611,146.32 and 240,019.36 is: 360,023.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,437.28 : 611,146.32 = 240,019.36 : x
  2. Step 2: Convert to fraction form
    407,437.28/611,146.32 = 240,019.36/x
  3. Step 3: Cross multiply
    407,437.28x = 611,146.32 × 240,019.36
  4. Step 4: Simplify right side
    407,437.28x = 146,686,948,592.76
  5. Step 5: Solve for x
    x = 146,686,948,592.76/407,437.28
  6. Step 6: Final answer
    x = 360,023.38

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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.