Home / 771,341.08-1,064,454.86-427,188.28

Finding the Fourth Proportional to 771,341.08, 1,064,454.86 and 427,188.28

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Solution

The fourth proportional to 771,341.08, 1,064,454.86 and 427,188.28 is: 589,522.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,341.08 : 1,064,454.86 = 427,188.28 : x
  2. Step 2: Convert to fraction form
    771,341.08/1,064,454.86 = 427,188.28/x
  3. Step 3: Cross multiply
    771,341.08x = 1,064,454.86 × 427,188.28
  4. Step 4: Simplify right side
    771,341.08x = 454,722,640,781.04
  5. Step 5: Solve for x
    x = 454,722,640,781.04/771,341.08
  6. Step 6: Final answer
    x = 589,522.14

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Double scale
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Similar ratio
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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.