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Finding the Fourth Proportional to 3,139,347, 4,709,064.78 and 895,485

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Solution

The fourth proportional to 3,139,347, 4,709,064.78 and 895,485 is: 1,343,240.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139,347 : 4,709,064.78 = 895,485 : x
  2. Step 2: Convert to fraction form
    3,139,347/4,709,064.78 = 895,485/x
  3. Step 3: Cross multiply
    3,139,347x = 4,709,064.78 × 895,485
  4. Step 4: Simplify right side
    3,139,347x = 4,216,896,874,518.30
  5. Step 5: Solve for x
    x = 4,216,896,874,518.30/3,139,347
  6. Step 6: Final answer
    x = 1,343,240.13

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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.