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Finding the Fourth Proportional to 487,874.40, 673,256.19 and 270,070.48

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Solution

The fourth proportional to 487,874.40, 673,256.19 and 270,070.48 is: 372,691.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,874.40 : 673,256.19 = 270,070.48 : x
  2. Step 2: Convert to fraction form
    487,874.40/673,256.19 = 270,070.48/x
  3. Step 3: Cross multiply
    487,874.40x = 673,256.19 × 270,070.48
  4. Step 4: Simplify right side
    487,874.40x = 181,826,621,977.29
  5. Step 5: Solve for x
    x = 181,826,621,977.29/487,874.40
  6. Step 6: Final answer
    x = 372,691.46

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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.