Home / 563,650.12-777,835.52-309,001.51

Finding the Fourth Proportional to 563,650.12, 777,835.52 and 309,001.51

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Solution

The fourth proportional to 563,650.12, 777,835.52 and 309,001.51 is: 426,421.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,650.12 : 777,835.52 = 309,001.51 : x
  2. Step 2: Convert to fraction form
    563,650.12/777,835.52 = 309,001.51/x
  3. Step 3: Cross multiply
    563,650.12x = 777,835.52 × 309,001.51
  4. Step 4: Simplify right side
    563,650.12x = 240,352,346,322.46
  5. Step 5: Solve for x
    x = 240,352,346,322.46/563,650.12
  6. Step 6: Final answer
    x = 426,421.18

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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.