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Finding the Fourth Proportional to 885,703, 1,222,263.64 and 503,729.32

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Solution

The fourth proportional to 885,703, 1,222,263.64 and 503,729.32 is: 695,142.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,703 : 1,222,263.64 = 503,729.32 : x
  2. Step 2: Convert to fraction form
    885,703/1,222,263.64 = 503,729.32/x
  3. Step 3: Cross multiply
    885,703x = 1,222,263.64 × 503,729.32
  4. Step 4: Simplify right side
    885,703x = 615,690,032,237.93
  5. Step 5: Solve for x
    x = 615,690,032,237.93/885,703
  6. Step 6: Final answer
    x = 695,142.76

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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.