Home / 753,112.80-1,129,312.80-437,666.40

Finding the Fourth Proportional to 753,112.80, 1,129,312.80 and 437,666.40

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Solution

The fourth proportional to 753,112.80, 1,129,312.80 and 437,666.40 is: 656,292.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,112.80 : 1,129,312.80 = 437,666.40 : x
  2. Step 2: Convert to fraction form
    753,112.80/1,129,312.80 = 437,666.40/x
  3. Step 3: Cross multiply
    753,112.80x = 1,129,312.80 × 437,666.40
  4. Step 4: Simplify right side
    753,112.80x = 494,262,267,649.92
  5. Step 5: Solve for x
    x = 494,262,267,649.92/753,112.80
  6. Step 6: Final answer
    x = 656,292.48

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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.