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Finding the Fourth Proportional to 573,639.24, 791,641.44 and 315,527.16

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Solution

The fourth proportional to 573,639.24, 791,641.44 and 315,527.16 is: 435,438.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,639.24 : 791,641.44 = 315,527.16 : x
  2. Step 2: Convert to fraction form
    573,639.24/791,641.44 = 315,527.16/x
  3. Step 3: Cross multiply
    573,639.24x = 791,641.44 × 315,527.16
  4. Step 4: Simplify right side
    573,639.24x = 249,784,375,301.51
  5. Step 5: Solve for x
    x = 249,784,375,301.51/573,639.24
  6. Step 6: Final answer
    x = 435,438.09

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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.