Home / 670,629.47-1,006,387.34-315,744.98

Finding the Fourth Proportional to 670,629.47, 1,006,387.34 and 315,744.98

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Solution

The fourth proportional to 670,629.47, 1,006,387.34 and 315,744.98 is: 473,826.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,629.47 : 1,006,387.34 = 315,744.98 : x
  2. Step 2: Convert to fraction form
    670,629.47/1,006,387.34 = 315,744.98/x
  3. Step 3: Cross multiply
    670,629.47x = 1,006,387.34 × 315,744.98
  4. Step 4: Simplify right side
    670,629.47x = 317,761,743,929.89
  5. Step 5: Solve for x
    x = 317,761,743,929.89/670,629.47
  6. Step 6: Final answer
    x = 473,826.10

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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.