Home / 740,815.20-1,111,239.04-512,886.24

Finding the Fourth Proportional to 740,815.20, 1,111,239.04 and 512,886.24

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Solution

The fourth proportional to 740,815.20, 1,111,239.04 and 512,886.24 is: 769,340.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,815.20 : 1,111,239.04 = 512,886.24 : x
  2. Step 2: Convert to fraction form
    740,815.20/1,111,239.04 = 512,886.24/x
  3. Step 3: Cross multiply
    740,815.20x = 1,111,239.04 × 512,886.24
  4. Step 4: Simplify right side
    740,815.20x = 569,939,212,966.81
  5. Step 5: Solve for x
    x = 569,939,212,966.81/740,815.20
  6. Step 6: Final answer
    x = 769,340.60

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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.