Home / 845,370.60-1,269,181.80-490,639.20

Finding the Fourth Proportional to 845,370.60, 1,269,181.80 and 490,639.20

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Solution

The fourth proportional to 845,370.60, 1,269,181.80 and 490,639.20 is: 736,612.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,370.60 : 1,269,181.80 = 490,639.20 : x
  2. Step 2: Convert to fraction form
    845,370.60/1,269,181.80 = 490,639.20/x
  3. Step 3: Cross multiply
    845,370.60x = 1,269,181.80 × 490,639.20
  4. Step 4: Simplify right side
    845,370.60x = 622,710,343,006.56
  5. Step 5: Solve for x
    x = 622,710,343,006.56/845,370.60
  6. Step 6: Final answer
    x = 736,612.25

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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.