Home / 710,829.60-1,065,870-261,434.40

Finding the Fourth Proportional to 710,829.60, 1,065,870 and 261,434.40

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Solution

The fourth proportional to 710,829.60, 1,065,870 and 261,434.40 is: 392,013.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,829.60 : 1,065,870 = 261,434.40 : x
  2. Step 2: Convert to fraction form
    710,829.60/1,065,870 = 261,434.40/x
  3. Step 3: Cross multiply
    710,829.60x = 1,065,870 × 261,434.40
  4. Step 4: Simplify right side
    710,829.60x = 278,655,083,928
  5. Step 5: Solve for x
    x = 278,655,083,928/710,829.60
  6. Step 6: Final answer
    x = 392,013.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.