Home / 480,390.13-720,559.07-243,726.66

Finding the Fourth Proportional to 480,390.13, 720,559.07 and 243,726.66

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Solution

The fourth proportional to 480,390.13, 720,559.07 and 243,726.66 is: 365,576.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,390.13 : 720,559.07 = 243,726.66 : x
  2. Step 2: Convert to fraction form
    480,390.13/720,559.07 = 243,726.66/x
  3. Step 3: Cross multiply
    480,390.13x = 720,559.07 × 243,726.66
  4. Step 4: Simplify right side
    480,390.13x = 175,619,455,463.81
  5. Step 5: Solve for x
    x = 175,619,455,463.81/480,390.13
  6. Step 6: Final answer
    x = 365,576.74

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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.