Home / 965,000.26-1,331,860.02-535,418.78

Finding the Fourth Proportional to 965,000.26, 1,331,860.02 and 535,418.78

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Solution

The fourth proportional to 965,000.26, 1,331,860.02 and 535,418.78 is: 738,966.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,000.26 : 1,331,860.02 = 535,418.78 : x
  2. Step 2: Convert to fraction form
    965,000.26/1,331,860.02 = 535,418.78/x
  3. Step 3: Cross multiply
    965,000.26x = 1,331,860.02 × 535,418.78
  4. Step 4: Simplify right side
    965,000.26x = 713,102,867,039.18
  5. Step 5: Solve for x
    x = 713,102,867,039.18/965,000.26
  6. Step 6: Final answer
    x = 738,966.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.