Home / 709,464.80-1,064,197.20-210,828.80

Finding the Fourth Proportional to 709,464.80, 1,064,197.20 and 210,828.80

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Solution

The fourth proportional to 709,464.80, 1,064,197.20 and 210,828.80 is: 316,243.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,464.80 : 1,064,197.20 = 210,828.80 : x
  2. Step 2: Convert to fraction form
    709,464.80/1,064,197.20 = 210,828.80/x
  3. Step 3: Cross multiply
    709,464.80x = 1,064,197.20 × 210,828.80
  4. Step 4: Simplify right side
    709,464.80x = 224,363,418,639.36
  5. Step 5: Solve for x
    x = 224,363,418,639.36/709,464.80
  6. Step 6: Final answer
    x = 316,243.20

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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.