Home / 669,630.20-1,004,330.10-248,689.40

Finding the Fourth Proportional to 669,630.20, 1,004,330.10 and 248,689.40

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Solution

The fourth proportional to 669,630.20, 1,004,330.10 and 248,689.40 is: 372,991.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,630.20 : 1,004,330.10 = 248,689.40 : x
  2. Step 2: Convert to fraction form
    669,630.20/1,004,330.10 = 248,689.40/x
  3. Step 3: Cross multiply
    669,630.20x = 1,004,330.10 × 248,689.40
  4. Step 4: Simplify right side
    669,630.20x = 249,766,249,970.94
  5. Step 5: Solve for x
    x = 249,766,249,970.94/669,630.20
  6. Step 6: Final answer
    x = 372,991.32

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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.