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Finding the Fourth Proportional to 437,803.60, 657,223.80 and 434,693.20

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Solution

The fourth proportional to 437,803.60, 657,223.80 and 434,693.20 is: 652,554.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,803.60 : 657,223.80 = 434,693.20 : x
  2. Step 2: Convert to fraction form
    437,803.60/657,223.80 = 434,693.20/x
  3. Step 3: Cross multiply
    437,803.60x = 657,223.80 × 434,693.20
  4. Step 4: Simplify right side
    437,803.60x = 285,690,716,738.16
  5. Step 5: Solve for x
    x = 285,690,716,738.16/437,803.60
  6. Step 6: Final answer
    x = 652,554.52

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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.