Home / 761,719.20-1,051,284.60-439,366.20

Finding the Fourth Proportional to 761,719.20, 1,051,284.60 and 439,366.20

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Solution

The fourth proportional to 761,719.20, 1,051,284.60 and 439,366.20 is: 606,390.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,719.20 : 1,051,284.60 = 439,366.20 : x
  2. Step 2: Convert to fraction form
    761,719.20/1,051,284.60 = 439,366.20/x
  3. Step 3: Cross multiply
    761,719.20x = 1,051,284.60 × 439,366.20
  4. Step 4: Simplify right side
    761,719.20x = 461,898,919,820.52
  5. Step 5: Solve for x
    x = 461,898,919,820.52/761,719.20
  6. Step 6: Final answer
    x = 606,390.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.