Home / 845,970.90-1,268,661.20-340,400.90

Finding the Fourth Proportional to 845,970.90, 1,268,661.20 and 340,400.90

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Solution

The fourth proportional to 845,970.90, 1,268,661.20 and 340,400.90 is: 510,482.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,970.90 : 1,268,661.20 = 340,400.90 : x
  2. Step 2: Convert to fraction form
    845,970.90/1,268,661.20 = 340,400.90/x
  3. Step 3: Cross multiply
    845,970.90x = 1,268,661.20 × 340,400.90
  4. Step 4: Simplify right side
    845,970.90x = 431,853,406,229.77
  5. Step 5: Solve for x
    x = 431,853,406,229.77/845,970.90
  6. Step 6: Final answer
    x = 510,482.58

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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.