Home / 1,186,264.12-1,637,036.34-642,387.46

Finding the Fourth Proportional to 1,186,264.12, 1,637,036.34 and 642,387.46

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Solution

The fourth proportional to 1,186,264.12, 1,637,036.34 and 642,387.46 is: 886,490.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,264.12 : 1,637,036.34 = 642,387.46 : x
  2. Step 2: Convert to fraction form
    1,186,264.12/1,637,036.34 = 642,387.46/x
  3. Step 3: Cross multiply
    1,186,264.12x = 1,637,036.34 × 642,387.46
  4. Step 4: Simplify right side
    1,186,264.12x = 1,051,611,616,380.30
  5. Step 5: Solve for x
    x = 1,051,611,616,380.30/1,186,264.12
  6. Step 6: Final answer
    x = 886,490.28

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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.