Home / 753,498.40-1,039,820.88-409,329.76

Finding the Fourth Proportional to 753,498.40, 1,039,820.88 and 409,329.76

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Solution

The fourth proportional to 753,498.40, 1,039,820.88 and 409,329.76 is: 564,871.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,498.40 : 1,039,820.88 = 409,329.76 : x
  2. Step 2: Convert to fraction form
    753,498.40/1,039,820.88 = 409,329.76/x
  3. Step 3: Cross multiply
    753,498.40x = 1,039,820.88 × 409,329.76
  4. Step 4: Simplify right side
    753,498.40x = 425,629,631,253.39
  5. Step 5: Solve for x
    x = 425,629,631,253.39/753,498.40
  6. Step 6: Final answer
    x = 564,871.31

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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.