Home / 743,376.15-1,025,288.28-501,275.25

Finding the Fourth Proportional to 743,376.15, 1,025,288.28 and 501,275.25

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Solution

The fourth proportional to 743,376.15, 1,025,288.28 and 501,275.25 is: 691,374.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,376.15 : 1,025,288.28 = 501,275.25 : x
  2. Step 2: Convert to fraction form
    743,376.15/1,025,288.28 = 501,275.25/x
  3. Step 3: Cross multiply
    743,376.15x = 1,025,288.28 × 501,275.25
  4. Step 4: Simplify right side
    743,376.15x = 513,951,638,879.07
  5. Step 5: Solve for x
    x = 513,951,638,879.07/743,376.15
  6. Step 6: Final answer
    x = 691,374.94

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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.