Home / 745,263.04-1,028,462.24-405,731.28

Finding the Fourth Proportional to 745,263.04, 1,028,462.24 and 405,731.28

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Solution

The fourth proportional to 745,263.04, 1,028,462.24 and 405,731.28 is: 559,908.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,263.04 : 1,028,462.24 = 405,731.28 : x
  2. Step 2: Convert to fraction form
    745,263.04/1,028,462.24 = 405,731.28/x
  3. Step 3: Cross multiply
    745,263.04x = 1,028,462.24 × 405,731.28
  4. Step 4: Simplify right side
    745,263.04x = 417,279,301,066.87
  5. Step 5: Solve for x
    x = 417,279,301,066.87/745,263.04
  6. Step 6: Final answer
    x = 559,908.76

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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.