Home / 959,431.50-1,439,154.54-328,350.78

Finding the Fourth Proportional to 959,431.50, 1,439,154.54 and 328,350.78

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Solution

The fourth proportional to 959,431.50, 1,439,154.54 and 328,350.78 is: 492,528.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,431.50 : 1,439,154.54 = 328,350.78 : x
  2. Step 2: Convert to fraction form
    959,431.50/1,439,154.54 = 328,350.78/x
  3. Step 3: Cross multiply
    959,431.50x = 1,439,154.54 × 328,350.78
  4. Step 4: Simplify right side
    959,431.50x = 472,547,515,749.54
  5. Step 5: Solve for x
    x = 472,547,515,749.54/959,431.50
  6. Step 6: Final answer
    x = 492,528.66

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1.5x scale

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.