Home / 814,412.85-1,123,942.89-470,263.29

Finding the Fourth Proportional to 814,412.85, 1,123,942.89 and 470,263.29

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Solution

The fourth proportional to 814,412.85, 1,123,942.89 and 470,263.29 is: 648,994.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,412.85 : 1,123,942.89 = 470,263.29 : x
  2. Step 2: Convert to fraction form
    814,412.85/1,123,942.89 = 470,263.29/x
  3. Step 3: Cross multiply
    814,412.85x = 1,123,942.89 × 470,263.29
  4. Step 4: Simplify right side
    814,412.85x = 528,549,081,223.51
  5. Step 5: Solve for x
    x = 528,549,081,223.51/814,412.85
  6. Step 6: Final answer
    x = 648,994.03

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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.