Home / 711,111.60-1,066,668.48-290,387.52

Finding the Fourth Proportional to 711,111.60, 1,066,668.48 and 290,387.52

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Solution

The fourth proportional to 711,111.60, 1,066,668.48 and 290,387.52 is: 435,581.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,111.60 : 1,066,668.48 = 290,387.52 : x
  2. Step 2: Convert to fraction form
    711,111.60/1,066,668.48 = 290,387.52/x
  3. Step 3: Cross multiply
    711,111.60x = 1,066,668.48 × 290,387.52
  4. Step 4: Simplify right side
    711,111.60x = 309,747,214,569.37
  5. Step 5: Solve for x
    x = 309,747,214,569.37/711,111.60
  6. Step 6: Final answer
    x = 435,581.72

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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.