Home / 1,018,988.51-1,403,773.74-712,491.39

Finding the Fourth Proportional to 1,018,988.51, 1,403,773.74 and 712,491.39

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Solution

The fourth proportional to 1,018,988.51, 1,403,773.74 and 712,491.39 is: 981,538.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,988.51 : 1,403,773.74 = 712,491.39 : x
  2. Step 2: Convert to fraction form
    1,018,988.51/1,403,773.74 = 712,491.39/x
  3. Step 3: Cross multiply
    1,018,988.51x = 1,403,773.74 × 712,491.39
  4. Step 4: Simplify right side
    1,018,988.51x = 1,000,176,703,258.10
  5. Step 5: Solve for x
    x = 1,000,176,703,258.10/1,018,988.51
  6. Step 6: Final answer
    x = 981,538.75

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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.