Home / 1,426,420.60-2,139,728.10-453,707.80

Finding the Fourth Proportional to 1,426,420.60, 2,139,728.10 and 453,707.80

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Solution

The fourth proportional to 1,426,420.60, 2,139,728.10 and 453,707.80 is: 680,592.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,420.60 : 2,139,728.10 = 453,707.80 : x
  2. Step 2: Convert to fraction form
    1,426,420.60/2,139,728.10 = 453,707.80/x
  3. Step 3: Cross multiply
    1,426,420.60x = 2,139,728.10 × 453,707.80
  4. Step 4: Simplify right side
    1,426,420.60x = 970,811,328,849.18
  5. Step 5: Solve for x
    x = 970,811,328,849.18/1,426,420.60
  6. Step 6: Final answer
    x = 680,592.62

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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.