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Finding the Fourth Proportional to 570,445.04, 787,232.52 and 328,708.40

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Solution

The fourth proportional to 570,445.04, 787,232.52 and 328,708.40 is: 453,628.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,445.04 : 787,232.52 = 328,708.40 : x
  2. Step 2: Convert to fraction form
    570,445.04/787,232.52 = 328,708.40/x
  3. Step 3: Cross multiply
    570,445.04x = 787,232.52 × 328,708.40
  4. Step 4: Simplify right side
    570,445.04x = 258,769,942,077.17
  5. Step 5: Solve for x
    x = 258,769,942,077.17/570,445.04
  6. Step 6: Final answer
    x = 453,628.17

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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.