Home / 1,121,713.74-1,547,956.95-612,416.10

Finding the Fourth Proportional to 1,121,713.74, 1,547,956.95 and 612,416.10

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Solution

The fourth proportional to 1,121,713.74, 1,547,956.95 and 612,416.10 is: 845,129.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,713.74 : 1,547,956.95 = 612,416.10 : x
  2. Step 2: Convert to fraction form
    1,121,713.74/1,547,956.95 = 612,416.10/x
  3. Step 3: Cross multiply
    1,121,713.74x = 1,547,956.95 × 612,416.10
  4. Step 4: Simplify right side
    1,121,713.74x = 947,993,758,286.90
  5. Step 5: Solve for x
    x = 947,993,758,286.90/1,121,713.74
  6. Step 6: Final answer
    x = 845,129.84

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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.