Home / 1,018,959-1,404,681.40-712,082.64

Finding the Fourth Proportional to 1,018,959, 1,404,681.40 and 712,082.64

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Solution

The fourth proportional to 1,018,959, 1,404,681.40 and 712,082.64 is: 981,638.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,959 : 1,404,681.40 = 712,082.64 : x
  2. Step 2: Convert to fraction form
    1,018,959/1,404,681.40 = 712,082.64/x
  3. Step 3: Cross multiply
    1,018,959x = 1,404,681.40 × 712,082.64
  4. Step 4: Simplify right side
    1,018,959x = 1,000,249,239,670.90
  5. Step 5: Solve for x
    x = 1,000,249,239,670.90/1,018,959
  6. Step 6: Final answer
    x = 981,638.36

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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.