Home / 710,531.20-1,065,796.80-512,243.20

Finding the Fourth Proportional to 710,531.20, 1,065,796.80 and 512,243.20

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Solution

The fourth proportional to 710,531.20, 1,065,796.80 and 512,243.20 is: 768,364.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,531.20 : 1,065,796.80 = 512,243.20 : x
  2. Step 2: Convert to fraction form
    710,531.20/1,065,796.80 = 512,243.20/x
  3. Step 3: Cross multiply
    710,531.20x = 1,065,796.80 × 512,243.20
  4. Step 4: Simplify right side
    710,531.20x = 545,947,163,381.76
  5. Step 5: Solve for x
    x = 545,947,163,381.76/710,531.20
  6. Step 6: Final answer
    x = 768,364.80

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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.