Home / 900,001.33-1,242,246.80-513,020.48

Finding the Fourth Proportional to 900,001.33, 1,242,246.80 and 513,020.48

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Solution

The fourth proportional to 900,001.33, 1,242,246.80 and 513,020.48 is: 708,107.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,001.33 : 1,242,246.80 = 513,020.48 : x
  2. Step 2: Convert to fraction form
    900,001.33/1,242,246.80 = 513,020.48/x
  3. Step 3: Cross multiply
    900,001.33x = 1,242,246.80 × 513,020.48
  4. Step 4: Simplify right side
    900,001.33x = 637,298,048,184.72
  5. Step 5: Solve for x
    x = 637,298,048,184.72/900,001.33
  6. Step 6: Final answer
    x = 708,107.90

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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.