Home / 670,743.81-1,005,820.47-355,126.91

Finding the Fourth Proportional to 670,743.81, 1,005,820.47 and 355,126.91

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Solution

The fourth proportional to 670,743.81, 1,005,820.47 and 355,126.91 is: 532,534.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,743.81 : 1,005,820.47 = 355,126.91 : x
  2. Step 2: Convert to fraction form
    670,743.81/1,005,820.47 = 355,126.91/x
  3. Step 3: Cross multiply
    670,743.81x = 1,005,820.47 × 355,126.91
  4. Step 4: Simplify right side
    670,743.81x = 357,193,910,496.75
  5. Step 5: Solve for x
    x = 357,193,910,496.75/670,743.81
  6. Step 6: Final answer
    x = 532,534.04

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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.