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Finding the Fourth Proportional to 988,854.86, 1,364,646.48 and 559,199

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Solution

The fourth proportional to 988,854.86, 1,364,646.48 and 559,199 is: 771,709.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,854.86 : 1,364,646.48 = 559,199 : x
  2. Step 2: Convert to fraction form
    988,854.86/1,364,646.48 = 559,199/x
  3. Step 3: Cross multiply
    988,854.86x = 1,364,646.48 × 559,199
  4. Step 4: Simplify right side
    988,854.86x = 763,108,946,969.52
  5. Step 5: Solve for x
    x = 763,108,946,969.52/988,854.86
  6. Step 6: Final answer
    x = 771,709.76

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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.