Home / 684,971.16-945,246.05-379,047.35

Finding the Fourth Proportional to 684,971.16, 945,246.05 and 379,047.35

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Solution

The fourth proportional to 684,971.16, 945,246.05 and 379,047.35 is: 523,077.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,971.16 : 945,246.05 = 379,047.35 : x
  2. Step 2: Convert to fraction form
    684,971.16/945,246.05 = 379,047.35/x
  3. Step 3: Cross multiply
    684,971.16x = 945,246.05 × 379,047.35
  4. Step 4: Simplify right side
    684,971.16x = 358,293,010,350.47
  5. Step 5: Solve for x
    x = 358,293,010,350.47/684,971.16
  6. Step 6: Final answer
    x = 523,077.51

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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.