Home / 564,050.25-778,389.35-309,402.05

Finding the Fourth Proportional to 564,050.25, 778,389.35 and 309,402.05

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Solution

The fourth proportional to 564,050.25, 778,389.35 and 309,402.05 is: 426,974.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,050.25 : 778,389.35 = 309,402.05 : x
  2. Step 2: Convert to fraction form
    564,050.25/778,389.35 = 309,402.05/x
  3. Step 3: Cross multiply
    564,050.25x = 778,389.35 × 309,402.05
  4. Step 4: Simplify right side
    564,050.25x = 240,835,255,149.21
  5. Step 5: Solve for x
    x = 240,835,255,149.21/564,050.25
  6. Step 6: Final answer
    x = 426,974.82

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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.