Home / 845,406.80-1,268,110.20-740,430.80

Finding the Fourth Proportional to 845,406.80, 1,268,110.20 and 740,430.80

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Solution

The fourth proportional to 845,406.80, 1,268,110.20 and 740,430.80 is: 1,110,646.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,406.80 : 1,268,110.20 = 740,430.80 : x
  2. Step 2: Convert to fraction form
    845,406.80/1,268,110.20 = 740,430.80/x
  3. Step 3: Cross multiply
    845,406.80x = 1,268,110.20 × 740,430.80
  4. Step 4: Simplify right side
    845,406.80x = 938,947,849,874.16
  5. Step 5: Solve for x
    x = 938,947,849,874.16/845,406.80
  6. Step 6: Final answer
    x = 1,110,646.20

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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.