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Finding the Fourth Proportional to 569,048.86, 785,278.23 and 310,920.29

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Solution

The fourth proportional to 569,048.86, 785,278.23 and 310,920.29 is: 429,064.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,048.86 : 785,278.23 = 310,920.29 : x
  2. Step 2: Convert to fraction form
    569,048.86/785,278.23 = 310,920.29/x
  3. Step 3: Cross multiply
    569,048.86x = 785,278.23 × 310,920.29
  4. Step 4: Simplify right side
    569,048.86x = 244,158,932,854.74
  5. Step 5: Solve for x
    x = 244,158,932,854.74/569,048.86
  6. Step 6: Final answer
    x = 429,064.97

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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.