Home / 684,989.49-945,276.15-379,047.23

Finding the Fourth Proportional to 684,989.49, 945,276.15 and 379,047.23

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Solution

The fourth proportional to 684,989.49, 945,276.15 and 379,047.23 is: 523,080.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,989.49 : 945,276.15 = 379,047.23 : x
  2. Step 2: Convert to fraction form
    684,989.49/945,276.15 = 379,047.23/x
  3. Step 3: Cross multiply
    684,989.49x = 945,276.15 × 379,047.23
  4. Step 4: Simplify right side
    684,989.49x = 358,304,308,605.76
  5. Step 5: Solve for x
    x = 358,304,308,605.76/684,989.49
  6. Step 6: Final answer
    x = 523,080.01

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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.