Home / 1,087,302.70-1,630,954.05-709,389.10

Finding the Fourth Proportional to 1,087,302.70, 1,630,954.05 and 709,389.10

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Solution

The fourth proportional to 1,087,302.70, 1,630,954.05 and 709,389.10 is: 1,064,083.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,302.70 : 1,630,954.05 = 709,389.10 : x
  2. Step 2: Convert to fraction form
    1,087,302.70/1,630,954.05 = 709,389.10/x
  3. Step 3: Cross multiply
    1,087,302.70x = 1,630,954.05 × 709,389.10
  4. Step 4: Simplify right side
    1,087,302.70x = 1,156,981,025,670.86
  5. Step 5: Solve for x
    x = 1,156,981,025,670.86/1,087,302.70
  6. Step 6: Final answer
    x = 1,064,083.65

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Double scale
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Similar ratio
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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.