Home / 1,424,975.81-1,966,428.20-813,117.50

Finding the Fourth Proportional to 1,424,975.81, 1,966,428.20 and 813,117.50

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Solution

The fourth proportional to 1,424,975.81, 1,966,428.20 and 813,117.50 is: 1,122,080.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,975.81 : 1,966,428.20 = 813,117.50 : x
  2. Step 2: Convert to fraction form
    1,424,975.81/1,966,428.20 = 813,117.50/x
  3. Step 3: Cross multiply
    1,424,975.81x = 1,966,428.20 × 813,117.50
  4. Step 4: Simplify right side
    1,424,975.81x = 1,598,937,172,081.36
  5. Step 5: Solve for x
    x = 1,598,937,172,081.36/1,424,975.81
  6. Step 6: Final answer
    x = 1,122,080.23

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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.