Home / 1,115,278.40-1,671,747.96-545,874.32

Finding the Fourth Proportional to 1,115,278.40, 1,671,747.96 and 545,874.32

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Solution

The fourth proportional to 1,115,278.40, 1,671,747.96 and 545,874.32 is: 818,239.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,278.40 : 1,671,747.96 = 545,874.32 : x
  2. Step 2: Convert to fraction form
    1,115,278.40/1,671,747.96 = 545,874.32/x
  3. Step 3: Cross multiply
    1,115,278.40x = 1,671,747.96 × 545,874.32
  4. Step 4: Simplify right side
    1,115,278.40x = 912,564,280,876.39
  5. Step 5: Solve for x
    x = 912,564,280,876.39/1,115,278.40
  6. Step 6: Final answer
    x = 818,239.00

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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.