Home / 946,943.76-1,420,420.95-315,855.84

Finding the Fourth Proportional to 946,943.76, 1,420,420.95 and 315,855.84

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Solution

The fourth proportional to 946,943.76, 1,420,420.95 and 315,855.84 is: 473,785.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,943.76 : 1,420,420.95 = 315,855.84 : x
  2. Step 2: Convert to fraction form
    946,943.76/1,420,420.95 = 315,855.84/x
  3. Step 3: Cross multiply
    946,943.76x = 1,420,420.95 × 315,855.84
  4. Step 4: Simplify right side
    946,943.76x = 448,648,252,315.85
  5. Step 5: Solve for x
    x = 448,648,252,315.85/946,943.76
  6. Step 6: Final answer
    x = 473,785.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.