Home / 913,729.96-1,258,130.90-811,577.92

Finding the Fourth Proportional to 913,729.96, 1,258,130.90 and 811,577.92

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Solution

The fourth proportional to 913,729.96, 1,258,130.90 and 811,577.92 is: 1,117,475.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,729.96 : 1,258,130.90 = 811,577.92 : x
  2. Step 2: Convert to fraction form
    913,729.96/1,258,130.90 = 811,577.92/x
  3. Step 3: Cross multiply
    913,729.96x = 1,258,130.90 × 811,577.92
  4. Step 4: Simplify right side
    913,729.96x = 1,021,071,258,909.73
  5. Step 5: Solve for x
    x = 1,021,071,258,909.73/913,729.96
  6. Step 6: Final answer
    x = 1,117,475.95

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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.