Home / 684,973.16-945,248.81-379,049.35

Finding the Fourth Proportional to 684,973.16, 945,248.81 and 379,049.35

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Solution

The fourth proportional to 684,973.16, 945,248.81 and 379,049.35 is: 523,080.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,973.16 : 945,248.81 = 379,049.35 : x
  2. Step 2: Convert to fraction form
    684,973.16/945,248.81 = 379,049.35/x
  3. Step 3: Cross multiply
    684,973.16x = 945,248.81 × 379,049.35
  4. Step 4: Simplify right side
    684,973.16x = 358,295,947,018.77
  5. Step 5: Solve for x
    x = 358,295,947,018.77/684,973.16
  6. Step 6: Final answer
    x = 523,080.27

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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.