Home / 1,007,659.22-1,390,855.78-663,746.18

Finding the Fourth Proportional to 1,007,659.22, 1,390,855.78 and 663,746.18

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Solution

The fourth proportional to 1,007,659.22, 1,390,855.78 and 663,746.18 is: 916,158.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,659.22 : 1,390,855.78 = 663,746.18 : x
  2. Step 2: Convert to fraction form
    1,007,659.22/1,390,855.78 = 663,746.18/x
  3. Step 3: Cross multiply
    1,007,659.22x = 1,390,855.78 × 663,746.18
  4. Step 4: Simplify right side
    1,007,659.22x = 923,175,210,905.92
  5. Step 5: Solve for x
    x = 923,175,210,905.92/1,007,659.22
  6. Step 6: Final answer
    x = 916,158.15

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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.