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Finding the Fourth Proportional to 480,405.96, 719,559.18 and 243,341.64

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Solution

The fourth proportional to 480,405.96, 719,559.18 and 243,341.64 is: 364,480.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,405.96 : 719,559.18 = 243,341.64 : x
  2. Step 2: Convert to fraction form
    480,405.96/719,559.18 = 243,341.64/x
  3. Step 3: Cross multiply
    480,405.96x = 719,559.18 × 243,341.64
  4. Step 4: Simplify right side
    480,405.96x = 175,098,710,938.26
  5. Step 5: Solve for x
    x = 175,098,710,938.26/480,405.96
  6. Step 6: Final answer
    x = 364,480.72

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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.