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Finding the Fourth Proportional to 480,030.40, 718,490.40 and 340,062.40

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Solution

The fourth proportional to 480,030.40, 718,490.40 and 340,062.40 is: 508,991.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,030.40 : 718,490.40 = 340,062.40 : x
  2. Step 2: Convert to fraction form
    480,030.40/718,490.40 = 340,062.40/x
  3. Step 3: Cross multiply
    480,030.40x = 718,490.40 × 340,062.40
  4. Step 4: Simplify right side
    480,030.40x = 244,331,569,800.96
  5. Step 5: Solve for x
    x = 244,331,569,800.96/480,030.40
  6. Step 6: Final answer
    x = 508,991.87

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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.