Home / 564,109.26-778,457.43-309,458.22

Finding the Fourth Proportional to 564,109.26, 778,457.43 and 309,458.22

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Solution

The fourth proportional to 564,109.26, 778,457.43 and 309,458.22 is: 427,045.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,109.26 : 778,457.43 = 309,458.22 : x
  2. Step 2: Convert to fraction form
    564,109.26/778,457.43 = 309,458.22/x
  3. Step 3: Cross multiply
    564,109.26x = 778,457.43 × 309,458.22
  4. Step 4: Simplify right side
    564,109.26x = 240,900,050,633.58
  5. Step 5: Solve for x
    x = 240,900,050,633.58/564,109.26
  6. Step 6: Final answer
    x = 427,045.02

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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.