Home / 710,307.28-1,065,725.62-426,201.74

Finding the Fourth Proportional to 710,307.28, 1,065,725.62 and 426,201.74

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Solution

The fourth proportional to 710,307.28, 1,065,725.62 and 426,201.74 is: 639,461.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,307.28 : 1,065,725.62 = 426,201.74 : x
  2. Step 2: Convert to fraction form
    710,307.28/1,065,725.62 = 426,201.74/x
  3. Step 3: Cross multiply
    710,307.28x = 1,065,725.62 × 426,201.74
  4. Step 4: Simplify right side
    710,307.28x = 454,214,111,475.57
  5. Step 5: Solve for x
    x = 454,214,111,475.57/710,307.28
  6. Step 6: Final answer
    x = 639,461.43

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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.