Home / 993,919.20-1,490,891.76-283,970.40

Finding the Fourth Proportional to 993,919.20, 1,490,891.76 and 283,970.40

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Solution

The fourth proportional to 993,919.20, 1,490,891.76 and 283,970.40 is: 425,959.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,919.20 : 1,490,891.76 = 283,970.40 : x
  2. Step 2: Convert to fraction form
    993,919.20/1,490,891.76 = 283,970.40/x
  3. Step 3: Cross multiply
    993,919.20x = 1,490,891.76 × 283,970.40
  4. Step 4: Simplify right side
    993,919.20x = 423,369,129,443.90
  5. Step 5: Solve for x
    x = 423,369,129,443.90/993,919.20
  6. Step 6: Final answer
    x = 425,959.30

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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.