Home / 1,010,428-1,394,390.76-557,719.12

Finding the Fourth Proportional to 1,010,428, 1,394,390.76 and 557,719.12

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Solution

The fourth proportional to 1,010,428, 1,394,390.76 and 557,719.12 is: 769,652.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,428 : 1,394,390.76 = 557,719.12 : x
  2. Step 2: Convert to fraction form
    1,010,428/1,394,390.76 = 557,719.12/x
  3. Step 3: Cross multiply
    1,010,428x = 1,394,390.76 × 557,719.12
  4. Step 4: Simplify right side
    1,010,428x = 777,678,387,603.33
  5. Step 5: Solve for x
    x = 777,678,387,603.33/1,010,428
  6. Step 6: Final answer
    x = 769,652.45

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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.