Home / 674,459.79-1,012,409.91-290,398.71

Finding the Fourth Proportional to 674,459.79, 1,012,409.91 and 290,398.71

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Solution

The fourth proportional to 674,459.79, 1,012,409.91 and 290,398.71 is: 435,908.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,459.79 : 1,012,409.91 = 290,398.71 : x
  2. Step 2: Convert to fraction form
    674,459.79/1,012,409.91 = 290,398.71/x
  3. Step 3: Cross multiply
    674,459.79x = 1,012,409.91 × 290,398.71
  4. Step 4: Simplify right side
    674,459.79x = 294,002,529,349.99
  5. Step 5: Solve for x
    x = 294,002,529,349.99/674,459.79
  6. Step 6: Final answer
    x = 435,908.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.