Home / 672,730.65-928,593.23-400,883.81

Finding the Fourth Proportional to 672,730.65, 928,593.23 and 400,883.81

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Solution

The fourth proportional to 672,730.65, 928,593.23 and 400,883.81 is: 553,353.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,730.65 : 928,593.23 = 400,883.81 : x
  2. Step 2: Convert to fraction form
    672,730.65/928,593.23 = 400,883.81/x
  3. Step 3: Cross multiply
    672,730.65x = 928,593.23 × 400,883.81
  4. Step 4: Simplify right side
    672,730.65x = 372,257,985,335.22
  5. Step 5: Solve for x
    x = 372,257,985,335.22/672,730.65
  6. Step 6: Final answer
    x = 553,353.69

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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.