Home / 1,555,668.90-2,146,822.65-840,276.90

Finding the Fourth Proportional to 1,555,668.90, 2,146,822.65 and 840,276.90

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Solution

The fourth proportional to 1,555,668.90, 2,146,822.65 and 840,276.90 is: 1,159,581.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,668.90 : 2,146,822.65 = 840,276.90 : x
  2. Step 2: Convert to fraction form
    1,555,668.90/2,146,822.65 = 840,276.90/x
  3. Step 3: Cross multiply
    1,555,668.90x = 2,146,822.65 × 840,276.90
  4. Step 4: Simplify right side
    1,555,668.90x = 1,803,925,481,191.79
  5. Step 5: Solve for x
    x = 1,803,925,481,191.79/1,555,668.90
  6. Step 6: Final answer
    x = 1,159,581.89

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1.5x scale

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.