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Finding the Fourth Proportional to 453,498.80, 626,691.48 and 340,124.72

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Solution

The fourth proportional to 453,498.80, 626,691.48 and 340,124.72 is: 470,019.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,498.80 : 626,691.48 = 340,124.72 : x
  2. Step 2: Convert to fraction form
    453,498.80/626,691.48 = 340,124.72/x
  3. Step 3: Cross multiply
    453,498.80x = 626,691.48 × 340,124.72
  4. Step 4: Simplify right side
    453,498.80x = 213,153,264,161.39
  5. Step 5: Solve for x
    x = 213,153,264,161.39/453,498.80
  6. Step 6: Final answer
    x = 470,019.47

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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.