Home / 781,290.04-1,171,969.08-382,266.76

Finding the Fourth Proportional to 781,290.04, 1,171,969.08 and 382,266.76

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Solution

The fourth proportional to 781,290.04, 1,171,969.08 and 382,266.76 is: 573,416.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,290.04 : 1,171,969.08 = 382,266.76 : x
  2. Step 2: Convert to fraction form
    781,290.04/1,171,969.08 = 382,266.76/x
  3. Step 3: Cross multiply
    781,290.04x = 1,171,969.08 × 382,266.76
  4. Step 4: Simplify right side
    781,290.04x = 448,004,823,031.78
  5. Step 5: Solve for x
    x = 448,004,823,031.78/781,290.04
  6. Step 6: Final answer
    x = 573,416.79

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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.