Home / 718,779.20-1,078,168.80-637,908.80

Finding the Fourth Proportional to 718,779.20, 1,078,168.80 and 637,908.80

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Solution

The fourth proportional to 718,779.20, 1,078,168.80 and 637,908.80 is: 956,863.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,779.20 : 1,078,168.80 = 637,908.80 : x
  2. Step 2: Convert to fraction form
    718,779.20/1,078,168.80 = 637,908.80/x
  3. Step 3: Cross multiply
    718,779.20x = 1,078,168.80 × 637,908.80
  4. Step 4: Simplify right side
    718,779.20x = 687,773,365,405.44
  5. Step 5: Solve for x
    x = 687,773,365,405.44/718,779.20
  6. Step 6: Final answer
    x = 956,863.20

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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.