Home / 686,084.24-946,801.85-380,165.72

Finding the Fourth Proportional to 686,084.24, 946,801.85 and 380,165.72

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Solution

The fourth proportional to 686,084.24, 946,801.85 and 380,165.72 is: 524,631.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,084.24 : 946,801.85 = 380,165.72 : x
  2. Step 2: Convert to fraction form
    686,084.24/946,801.85 = 380,165.72/x
  3. Step 3: Cross multiply
    686,084.24x = 946,801.85 × 380,165.72
  4. Step 4: Simplify right side
    686,084.24x = 359,941,607,468.76
  5. Step 5: Solve for x
    x = 359,941,607,468.76/686,084.24
  6. Step 6: Final answer
    x = 524,631.80

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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.