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Finding the Fourth Proportional to 567,449.74, 783,085.89 and 312,810.04

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Solution

The fourth proportional to 567,449.74, 783,085.89 and 312,810.04 is: 431,680.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,449.74 : 783,085.89 = 312,810.04 : x
  2. Step 2: Convert to fraction form
    567,449.74/783,085.89 = 312,810.04/x
  3. Step 3: Cross multiply
    567,449.74x = 783,085.89 × 312,810.04
  4. Step 4: Simplify right side
    567,449.74x = 244,957,128,574.34
  5. Step 5: Solve for x
    x = 244,957,128,574.34/567,449.74
  6. Step 6: Final answer
    x = 431,680.75

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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.