Home / 818,869.43-1,130,123.90-492,288.17

Finding the Fourth Proportional to 818,869.43, 1,130,123.90 and 492,288.17

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Solution

The fourth proportional to 818,869.43, 1,130,123.90 and 492,288.17 is: 679,408.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,869.43 : 1,130,123.90 = 492,288.17 : x
  2. Step 2: Convert to fraction form
    818,869.43/1,130,123.90 = 492,288.17/x
  3. Step 3: Cross multiply
    818,869.43x = 1,130,123.90 × 492,288.17
  4. Step 4: Simplify right side
    818,869.43x = 556,346,626,604.26
  5. Step 5: Solve for x
    x = 556,346,626,604.26/818,869.43
  6. Step 6: Final answer
    x = 679,408.23

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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.