Home / 1,101,740.18-1,520,431.59-618,335.28

Finding the Fourth Proportional to 1,101,740.18, 1,520,431.59 and 618,335.28

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Solution

The fourth proportional to 1,101,740.18, 1,520,431.59 and 618,335.28 is: 853,319.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,740.18 : 1,520,431.59 = 618,335.28 : x
  2. Step 2: Convert to fraction form
    1,101,740.18/1,520,431.59 = 618,335.28/x
  3. Step 3: Cross multiply
    1,101,740.18x = 1,520,431.59 × 618,335.28
  4. Step 4: Simplify right side
    1,101,740.18x = 940,136,492,923.50
  5. Step 5: Solve for x
    x = 940,136,492,923.50/1,101,740.18
  6. Step 6: Final answer
    x = 853,319.61

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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.