Home / 759,944.60-1,139,916.90-310,370.30

Finding the Fourth Proportional to 759,944.60, 1,139,916.90 and 310,370.30

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Solution

The fourth proportional to 759,944.60, 1,139,916.90 and 310,370.30 is: 465,555.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,944.60 : 1,139,916.90 = 310,370.30 : x
  2. Step 2: Convert to fraction form
    759,944.60/1,139,916.90 = 310,370.30/x
  3. Step 3: Cross multiply
    759,944.60x = 1,139,916.90 × 310,370.30
  4. Step 4: Simplify right side
    759,944.60x = 353,796,350,228.07
  5. Step 5: Solve for x
    x = 353,796,350,228.07/759,944.60
  6. Step 6: Final answer
    x = 465,555.45

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Double scale
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Similar ratio
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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.