Home / 1,108,506.39-1,528,945.05-720,598.20

Finding the Fourth Proportional to 1,108,506.39, 1,528,945.05 and 720,598.20

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Solution

The fourth proportional to 1,108,506.39, 1,528,945.05 and 720,598.20 is: 993,909.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,506.39 : 1,528,945.05 = 720,598.20 : x
  2. Step 2: Convert to fraction form
    1,108,506.39/1,528,945.05 = 720,598.20/x
  3. Step 3: Cross multiply
    1,108,506.39x = 1,528,945.05 × 720,598.20
  4. Step 4: Simplify right side
    1,108,506.39x = 1,101,755,050,928.91
  5. Step 5: Solve for x
    x = 1,101,755,050,928.91/1,108,506.39
  6. Step 6: Final answer
    x = 993,909.52

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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.