Home / 459,943.71-690,030.36-160,428.57

Finding the Fourth Proportional to 459,943.71, 690,030.36 and 160,428.57

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Solution

The fourth proportional to 459,943.71, 690,030.36 and 160,428.57 is: 240,682.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,943.71 : 690,030.36 = 160,428.57 : x
  2. Step 2: Convert to fraction form
    459,943.71/690,030.36 = 160,428.57/x
  3. Step 3: Cross multiply
    459,943.71x = 690,030.36 × 160,428.57
  4. Step 4: Simplify right side
    459,943.71x = 110,700,583,911.39
  5. Step 5: Solve for x
    x = 110,700,583,911.39/459,943.71
  6. Step 6: Final answer
    x = 240,682.90

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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.