Home / 1,018,989.51-1,403,775.12-712,492.39

Finding the Fourth Proportional to 1,018,989.51, 1,403,775.12 and 712,492.39

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Solution

The fourth proportional to 1,018,989.51, 1,403,775.12 and 712,492.39 is: 981,540.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,989.51 : 1,403,775.12 = 712,492.39 : x
  2. Step 2: Convert to fraction form
    1,018,989.51/1,403,775.12 = 712,492.39/x
  3. Step 3: Cross multiply
    1,018,989.51x = 1,403,775.12 × 712,492.39
  4. Step 4: Simplify right side
    1,018,989.51x = 1,000,179,090,271.34
  5. Step 5: Solve for x
    x = 1,000,179,090,271.34/1,018,989.51
  6. Step 6: Final answer
    x = 981,540.12

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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.