Home / 1,384,121.40-2,076,510.15-710,306.70

Finding the Fourth Proportional to 1,384,121.40, 2,076,510.15 and 710,306.70

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Solution

The fourth proportional to 1,384,121.40, 2,076,510.15 and 710,306.70 is: 1,065,628.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,121.40 : 2,076,510.15 = 710,306.70 : x
  2. Step 2: Convert to fraction form
    1,384,121.40/2,076,510.15 = 710,306.70/x
  3. Step 3: Cross multiply
    1,384,121.40x = 2,076,510.15 × 710,306.70
  4. Step 4: Simplify right side
    1,384,121.40x = 1,474,959,072,163.01
  5. Step 5: Solve for x
    x = 1,474,959,072,163.01/1,384,121.40
  6. Step 6: Final answer
    x = 1,065,628.40

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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.