Home / 684,440.12-944,533.64-378,500.70

Finding the Fourth Proportional to 684,440.12, 944,533.64 and 378,500.70

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Solution

The fourth proportional to 684,440.12, 944,533.64 and 378,500.70 is: 522,334.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,440.12 : 944,533.64 = 378,500.70 : x
  2. Step 2: Convert to fraction form
    684,440.12/944,533.64 = 378,500.70/x
  3. Step 3: Cross multiply
    684,440.12x = 944,533.64 × 378,500.70
  4. Step 4: Simplify right side
    684,440.12x = 357,506,643,913.55
  5. Step 5: Solve for x
    x = 357,506,643,913.55/684,440.12
  6. Step 6: Final answer
    x = 522,334.44

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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.