Home / 744,779.70-1,117,315.35-318,314.70

Finding the Fourth Proportional to 744,779.70, 1,117,315.35 and 318,314.70

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Solution

The fourth proportional to 744,779.70, 1,117,315.35 and 318,314.70 is: 477,534.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,779.70 : 1,117,315.35 = 318,314.70 : x
  2. Step 2: Convert to fraction form
    744,779.70/1,117,315.35 = 318,314.70/x
  3. Step 3: Cross multiply
    744,779.70x = 1,117,315.35 × 318,314.70
  4. Step 4: Simplify right side
    744,779.70x = 355,657,900,440.65
  5. Step 5: Solve for x
    x = 355,657,900,440.65/744,779.70
  6. Step 6: Final answer
    x = 477,534.36

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Double scale
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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.