Home / 734,633.15-1,013,715.95-412,378.70

Finding the Fourth Proportional to 734,633.15, 1,013,715.95 and 412,378.70

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Solution

The fourth proportional to 734,633.15, 1,013,715.95 and 412,378.70 is: 569,038.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,633.15 : 1,013,715.95 = 412,378.70 : x
  2. Step 2: Convert to fraction form
    734,633.15/1,013,715.95 = 412,378.70/x
  3. Step 3: Cross multiply
    734,633.15x = 1,013,715.95 × 412,378.70
  4. Step 4: Simplify right side
    734,633.15x = 418,034,858,499.79
  5. Step 5: Solve for x
    x = 418,034,858,499.79/734,633.15
  6. Step 6: Final answer
    x = 569,038.93

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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.