Home / 868,589.60-1,303,058.54-299,991.55

Finding the Fourth Proportional to 868,589.60, 1,303,058.54 and 299,991.55

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Solution

The fourth proportional to 868,589.60, 1,303,058.54 and 299,991.55 is: 450,047.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,589.60 : 1,303,058.54 = 299,991.55 : x
  2. Step 2: Convert to fraction form
    868,589.60/1,303,058.54 = 299,991.55/x
  3. Step 3: Cross multiply
    868,589.60x = 1,303,058.54 × 299,991.55
  4. Step 4: Simplify right side
    868,589.60x = 390,906,549,655.38
  5. Step 5: Solve for x
    x = 390,906,549,655.38/868,589.60
  6. Step 6: Final answer
    x = 450,047.47

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1.5x scale

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.