Home / 875,356.80-1,312,509.60-342,242.16

Finding the Fourth Proportional to 875,356.80, 1,312,509.60 and 342,242.16

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Solution

The fourth proportional to 875,356.80, 1,312,509.60 and 342,242.16 is: 513,157.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,356.80 : 1,312,509.60 = 342,242.16 : x
  2. Step 2: Convert to fraction form
    875,356.80/1,312,509.60 = 342,242.16/x
  3. Step 3: Cross multiply
    875,356.80x = 1,312,509.60 × 342,242.16
  4. Step 4: Simplify right side
    875,356.80x = 449,196,120,524.74
  5. Step 5: Solve for x
    x = 449,196,120,524.74/875,356.80
  6. Step 6: Final answer
    x = 513,157.74

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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.