Home / 947,283.20-1,420,448.64-315,979.52

Finding the Fourth Proportional to 947,283.20, 1,420,448.64 and 315,979.52

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Solution

The fourth proportional to 947,283.20, 1,420,448.64 and 315,979.52 is: 473,810.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,283.20 : 1,420,448.64 = 315,979.52 : x
  2. Step 2: Convert to fraction form
    947,283.20/1,420,448.64 = 315,979.52/x
  3. Step 3: Cross multiply
    947,283.20x = 1,420,448.64 × 315,979.52
  4. Step 4: Simplify right side
    947,283.20x = 448,832,679,451.85
  5. Step 5: Solve for x
    x = 448,832,679,451.85/947,283.20
  6. Step 6: Final answer
    x = 473,810.45

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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.