Home / 745,299.60-1,028,482.56-405,767.04

Finding the Fourth Proportional to 745,299.60, 1,028,482.56 and 405,767.04

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Solution

The fourth proportional to 745,299.60, 1,028,482.56 and 405,767.04 is: 559,941.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,299.60 : 1,028,482.56 = 405,767.04 : x
  2. Step 2: Convert to fraction form
    745,299.60/1,028,482.56 = 405,767.04/x
  3. Step 3: Cross multiply
    745,299.60x = 1,028,482.56 × 405,767.04
  4. Step 4: Simplify right side
    745,299.60x = 417,324,324,062.82
  5. Step 5: Solve for x
    x = 417,324,324,062.82/745,299.60
  6. Step 6: Final answer
    x = 559,941.70

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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.