Home / 1,115,740.80-1,539,604.80-662,970.24

Finding the Fourth Proportional to 1,115,740.80, 1,539,604.80 and 662,970.24

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Solution

The fourth proportional to 1,115,740.80, 1,539,604.80 and 662,970.24 is: 914,829.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,740.80 : 1,539,604.80 = 662,970.24 : x
  2. Step 2: Convert to fraction form
    1,115,740.80/1,539,604.80 = 662,970.24/x
  3. Step 3: Cross multiply
    1,115,740.80x = 1,539,604.80 × 662,970.24
  4. Step 4: Simplify right side
    1,115,740.80x = 1,020,712,163,761.15
  5. Step 5: Solve for x
    x = 1,020,712,163,761.15/1,115,740.80
  6. Step 6: Final answer
    x = 914,829.11

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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.