Home / 1,200,646.26-1,656,931.38-656,769.63

Finding the Fourth Proportional to 1,200,646.26, 1,656,931.38 and 656,769.63

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Solution

The fourth proportional to 1,200,646.26, 1,656,931.38 and 656,769.63 is: 906,363.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,646.26 : 1,656,931.38 = 656,769.63 : x
  2. Step 2: Convert to fraction form
    1,200,646.26/1,656,931.38 = 656,769.63/x
  3. Step 3: Cross multiply
    1,200,646.26x = 1,656,931.38 × 656,769.63
  4. Step 4: Simplify right side
    1,200,646.26x = 1,088,222,213,128.60
  5. Step 5: Solve for x
    x = 1,088,222,213,128.60/1,200,646.26
  6. Step 6: Final answer
    x = 906,363.72

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1.5x scale

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.