Home / 749,415.72-1,034,130.90-422,710.68

Finding the Fourth Proportional to 749,415.72, 1,034,130.90 and 422,710.68

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Solution

The fourth proportional to 749,415.72, 1,034,130.90 and 422,710.68 is: 583,305.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,415.72 : 1,034,130.90 = 422,710.68 : x
  2. Step 2: Convert to fraction form
    749,415.72/1,034,130.90 = 422,710.68/x
  3. Step 3: Cross multiply
    749,415.72x = 1,034,130.90 × 422,710.68
  4. Step 4: Simplify right side
    749,415.72x = 437,138,175,948.01
  5. Step 5: Solve for x
    x = 437,138,175,948.01/749,415.72
  6. Step 6: Final answer
    x = 583,305.32

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Double scale
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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.