Home / 1,126,492.27-1,554,499.88-643,038.19

Finding the Fourth Proportional to 1,126,492.27, 1,554,499.88 and 643,038.19

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Solution

The fourth proportional to 1,126,492.27, 1,554,499.88 and 643,038.19 is: 887,358.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,492.27 : 1,554,499.88 = 643,038.19 : x
  2. Step 2: Convert to fraction form
    1,126,492.27/1,554,499.88 = 643,038.19/x
  3. Step 3: Cross multiply
    1,126,492.27x = 1,554,499.88 × 643,038.19
  4. Step 4: Simplify right side
    1,126,492.27x = 999,602,781,417.92
  5. Step 5: Solve for x
    x = 999,602,781,417.92/1,126,492.27
  6. Step 6: Final answer
    x = 887,358.76

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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.