Home / 710,823.60-1,065,861-261,428.40

Finding the Fourth Proportional to 710,823.60, 1,065,861 and 261,428.40

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Solution

The fourth proportional to 710,823.60, 1,065,861 and 261,428.40 is: 392,004.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,823.60 : 1,065,861 = 261,428.40 : x
  2. Step 2: Convert to fraction form
    710,823.60/1,065,861 = 261,428.40/x
  3. Step 3: Cross multiply
    710,823.60x = 1,065,861 × 261,428.40
  4. Step 4: Simplify right side
    710,823.60x = 278,646,335,852.40
  5. Step 5: Solve for x
    x = 278,646,335,852.40/710,823.60
  6. Step 6: Final answer
    x = 392,004.90

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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.