Home / 743,010.76-1,025,360.54-403,479.01

Finding the Fourth Proportional to 743,010.76, 1,025,360.54 and 403,479.01

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Solution

The fourth proportional to 743,010.76, 1,025,360.54 and 403,479.01 is: 556,804.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,010.76 : 1,025,360.54 = 403,479.01 : x
  2. Step 2: Convert to fraction form
    743,010.76/1,025,360.54 = 403,479.01/x
  3. Step 3: Cross multiply
    743,010.76x = 1,025,360.54 × 403,479.01
  4. Step 4: Simplify right side
    743,010.76x = 413,711,455,572.27
  5. Step 5: Solve for x
    x = 413,711,455,572.27/743,010.76
  6. Step 6: Final answer
    x = 556,804.12

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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.