Home / 747,000.40-1,120,354.80-248,364.40

Finding the Fourth Proportional to 747,000.40, 1,120,354.80 and 248,364.40

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Solution

The fourth proportional to 747,000.40, 1,120,354.80 and 248,364.40 is: 372,498.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,000.40 : 1,120,354.80 = 248,364.40 : x
  2. Step 2: Convert to fraction form
    747,000.40/1,120,354.80 = 248,364.40/x
  3. Step 3: Cross multiply
    747,000.40x = 1,120,354.80 × 248,364.40
  4. Step 4: Simplify right side
    747,000.40x = 278,256,247,689.12
  5. Step 5: Solve for x
    x = 278,256,247,689.12/747,000.40
  6. Step 6: Final answer
    x = 372,498.12

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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.