Home / 807,491.70-1,209,743.10-470,693.70

Finding the Fourth Proportional to 807,491.70, 1,209,743.10 and 470,693.70

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Solution

The fourth proportional to 807,491.70, 1,209,743.10 and 470,693.70 is: 705,169.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,491.70 : 1,209,743.10 = 470,693.70 : x
  2. Step 2: Convert to fraction form
    807,491.70/1,209,743.10 = 470,693.70/x
  3. Step 3: Cross multiply
    807,491.70x = 1,209,743.10 × 470,693.70
  4. Step 4: Simplify right side
    807,491.70x = 569,418,455,788.47
  5. Step 5: Solve for x
    x = 569,418,455,788.47/807,491.70
  6. Step 6: Final answer
    x = 705,169.42

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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.