Home / 847,960.86-1,170,130.95-485,387.58

Finding the Fourth Proportional to 847,960.86, 1,170,130.95 and 485,387.58

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Solution

The fourth proportional to 847,960.86, 1,170,130.95 and 485,387.58 is: 669,803.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,960.86 : 1,170,130.95 = 485,387.58 : x
  2. Step 2: Convert to fraction form
    847,960.86/1,170,130.95 = 485,387.58/x
  3. Step 3: Cross multiply
    847,960.86x = 1,170,130.95 × 485,387.58
  4. Step 4: Simplify right side
    847,960.86x = 567,967,030,103.60
  5. Step 5: Solve for x
    x = 567,967,030,103.60/847,960.86
  6. Step 6: Final answer
    x = 669,803.36

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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.