Home / 1,138,031.72-1,570,465.43-621,774.53

Finding the Fourth Proportional to 1,138,031.72, 1,570,465.43 and 621,774.53

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Solution

The fourth proportional to 1,138,031.72, 1,570,465.43 and 621,774.53 is: 858,038.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,031.72 : 1,570,465.43 = 621,774.53 : x
  2. Step 2: Convert to fraction form
    1,138,031.72/1,570,465.43 = 621,774.53/x
  3. Step 3: Cross multiply
    1,138,031.72x = 1,570,465.43 × 621,774.53
  4. Step 4: Simplify right side
    1,138,031.72x = 976,475,396,767.17
  5. Step 5: Solve for x
    x = 976,475,396,767.17/1,138,031.72
  6. Step 6: Final answer
    x = 858,038.83

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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.