Home / 771,172.92-1,064,218.26-431,641.08

Finding the Fourth Proportional to 771,172.92, 1,064,218.26 and 431,641.08

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Solution

The fourth proportional to 771,172.92, 1,064,218.26 and 431,641.08 is: 595,664.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,172.92 : 1,064,218.26 = 431,641.08 : x
  2. Step 2: Convert to fraction form
    771,172.92/1,064,218.26 = 431,641.08/x
  3. Step 3: Cross multiply
    771,172.92x = 1,064,218.26 × 431,641.08
  4. Step 4: Simplify right side
    771,172.92x = 459,360,319,102.12
  5. Step 5: Solve for x
    x = 459,360,319,102.12/771,172.92
  6. Step 6: Final answer
    x = 595,664.48

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Double scale
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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.