Home / 790,147.71-1,090,136.95-514,379.67

Finding the Fourth Proportional to 790,147.71, 1,090,136.95 and 514,379.67

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Solution

The fourth proportional to 790,147.71, 1,090,136.95 and 514,379.67 is: 709,670.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,147.71 : 1,090,136.95 = 514,379.67 : x
  2. Step 2: Convert to fraction form
    790,147.71/1,090,136.95 = 514,379.67/x
  3. Step 3: Cross multiply
    790,147.71x = 1,090,136.95 × 514,379.67
  4. Step 4: Simplify right side
    790,147.71x = 560,744,281,150.77
  5. Step 5: Solve for x
    x = 560,744,281,150.77/790,147.71
  6. Step 6: Final answer
    x = 709,670.20

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Double scale
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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.