Home / 849,319.22-1,172,109.02-486,803.46

Finding the Fourth Proportional to 849,319.22, 1,172,109.02 and 486,803.46

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Solution

The fourth proportional to 849,319.22, 1,172,109.02 and 486,803.46 is: 671,816.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,319.22 : 1,172,109.02 = 486,803.46 : x
  2. Step 2: Convert to fraction form
    849,319.22/1,172,109.02 = 486,803.46/x
  3. Step 3: Cross multiply
    849,319.22x = 1,172,109.02 × 486,803.46
  4. Step 4: Simplify right side
    849,319.22x = 570,586,726,433.21
  5. Step 5: Solve for x
    x = 570,586,726,433.21/849,319.22
  6. Step 6: Final answer
    x = 671,816.57

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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.