Home / 712,831.20-1,069,246.80-671,359.20

Finding the Fourth Proportional to 712,831.20, 1,069,246.80 and 671,359.20

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Solution

The fourth proportional to 712,831.20, 1,069,246.80 and 671,359.20 is: 1,007,038.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,831.20 : 1,069,246.80 = 671,359.20 : x
  2. Step 2: Convert to fraction form
    712,831.20/1,069,246.80 = 671,359.20/x
  3. Step 3: Cross multiply
    712,831.20x = 1,069,246.80 × 671,359.20
  4. Step 4: Simplify right side
    712,831.20x = 717,848,676,250.56
  5. Step 5: Solve for x
    x = 717,848,676,250.56/712,831.20
  6. Step 6: Final answer
    x = 1,007,038.80

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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.