Home / 423,569.28-634,510.26-309,956.46

Finding the Fourth Proportional to 423,569.28, 634,510.26 and 309,956.46

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Solution

The fourth proportional to 423,569.28, 634,510.26 and 309,956.46 is: 464,317.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,569.28 : 634,510.26 = 309,956.46 : x
  2. Step 2: Convert to fraction form
    423,569.28/634,510.26 = 309,956.46/x
  3. Step 3: Cross multiply
    423,569.28x = 634,510.26 × 309,956.46
  4. Step 4: Simplify right side
    423,569.28x = 196,670,551,643.87
  5. Step 5: Solve for x
    x = 196,670,551,643.87/423,569.28
  6. Step 6: Final answer
    x = 464,317.31

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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.