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Finding the Fourth Proportional to 661,270.60, 912,562.50 and 359,471.08

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Solution

The fourth proportional to 661,270.60, 912,562.50 and 359,471.08 is: 496,075.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,270.60 : 912,562.50 = 359,471.08 : x
  2. Step 2: Convert to fraction form
    661,270.60/912,562.50 = 359,471.08/x
  3. Step 3: Cross multiply
    661,270.60x = 912,562.50 × 359,471.08
  4. Step 4: Simplify right side
    661,270.60x = 328,039,827,442.50
  5. Step 5: Solve for x
    x = 328,039,827,442.50/661,270.60
  6. Step 6: Final answer
    x = 496,075.02

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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.