Home / 712,181.20-1,068,271.80-338,933.20

Finding the Fourth Proportional to 712,181.20, 1,068,271.80 and 338,933.20

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Solution

The fourth proportional to 712,181.20, 1,068,271.80 and 338,933.20 is: 508,399.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,181.20 : 1,068,271.80 = 338,933.20 : x
  2. Step 2: Convert to fraction form
    712,181.20/1,068,271.80 = 338,933.20/x
  3. Step 3: Cross multiply
    712,181.20x = 1,068,271.80 × 338,933.20
  4. Step 4: Simplify right side
    712,181.20x = 362,072,779,643.76
  5. Step 5: Solve for x
    x = 362,072,779,643.76/712,181.20
  6. Step 6: Final answer
    x = 508,399.80

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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.