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Finding the Fourth Proportional to 1,402,268.86, 1,934,700.85 and 857,837.08

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Solution

The fourth proportional to 1,402,268.86, 1,934,700.85 and 857,837.08 is: 1,183,552.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402,268.86 : 1,934,700.85 = 857,837.08 : x
  2. Step 2: Convert to fraction form
    1,402,268.86/1,934,700.85 = 857,837.08/x
  3. Step 3: Cross multiply
    1,402,268.86x = 1,934,700.85 × 857,837.08
  4. Step 4: Simplify right side
    1,402,268.86x = 1,659,658,126,502.86
  5. Step 5: Solve for x
    x = 1,659,658,126,502.86/1,402,268.86
  6. Step 6: Final answer
    x = 1,183,552.01

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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.