Home / 710,501.70-1,065,752.55-512,213.70

Finding the Fourth Proportional to 710,501.70, 1,065,752.55 and 512,213.70

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Solution

The fourth proportional to 710,501.70, 1,065,752.55 and 512,213.70 is: 768,320.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,501.70 : 1,065,752.55 = 512,213.70 : x
  2. Step 2: Convert to fraction form
    710,501.70/1,065,752.55 = 512,213.70/x
  3. Step 3: Cross multiply
    710,501.70x = 1,065,752.55 × 512,213.70
  4. Step 4: Simplify right side
    710,501.70x = 545,893,056,919.94
  5. Step 5: Solve for x
    x = 545,893,056,919.94/710,501.70
  6. Step 6: Final answer
    x = 768,320.55

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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.