Home / 670,617.70-1,005,926.55-355,689.70

Finding the Fourth Proportional to 670,617.70, 1,005,926.55 and 355,689.70

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Solution

The fourth proportional to 670,617.70, 1,005,926.55 and 355,689.70 is: 533,534.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,617.70 : 1,005,926.55 = 355,689.70 : x
  2. Step 2: Convert to fraction form
    670,617.70/1,005,926.55 = 355,689.70/x
  3. Step 3: Cross multiply
    670,617.70x = 1,005,926.55 × 355,689.70
  4. Step 4: Simplify right side
    670,617.70x = 357,797,712,791.54
  5. Step 5: Solve for x
    x = 357,797,712,791.54/670,617.70
  6. Step 6: Final answer
    x = 533,534.55

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1.5x scale

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.