Home / 745,433.55-1,028,670.21-455,529.87

Finding the Fourth Proportional to 745,433.55, 1,028,670.21 and 455,529.87

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Solution

The fourth proportional to 745,433.55, 1,028,670.21 and 455,529.87 is: 628,614.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,433.55 : 1,028,670.21 = 455,529.87 : x
  2. Step 2: Convert to fraction form
    745,433.55/1,028,670.21 = 455,529.87/x
  3. Step 3: Cross multiply
    745,433.55x = 1,028,670.21 × 455,529.87
  4. Step 4: Simplify right side
    745,433.55x = 468,590,007,034.17
  5. Step 5: Solve for x
    x = 468,590,007,034.17/745,433.55
  6. Step 6: Final answer
    x = 628,614.06

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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.