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Finding the Fourth Proportional to 895,407.40, 1,343,111.10 and 264,320.20

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Solution

The fourth proportional to 895,407.40, 1,343,111.10 and 264,320.20 is: 396,480.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,407.40 : 1,343,111.10 = 264,320.20 : x
  2. Step 2: Convert to fraction form
    895,407.40/1,343,111.10 = 264,320.20/x
  3. Step 3: Cross multiply
    895,407.40x = 1,343,111.10 × 264,320.20
  4. Step 4: Simplify right side
    895,407.40x = 355,011,394,574.22
  5. Step 5: Solve for x
    x = 355,011,394,574.22/895,407.40
  6. Step 6: Final answer
    x = 396,480.30

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.