Home / 1,247,901.40-1,872,059.10-438,075.88

Finding the Fourth Proportional to 1,247,901.40, 1,872,059.10 and 438,075.88

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Solution

The fourth proportional to 1,247,901.40, 1,872,059.10 and 438,075.88 is: 657,186.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,901.40 : 1,872,059.10 = 438,075.88 : x
  2. Step 2: Convert to fraction form
    1,247,901.40/1,872,059.10 = 438,075.88/x
  3. Step 3: Cross multiply
    1,247,901.40x = 1,872,059.10 × 438,075.88
  4. Step 4: Simplify right side
    1,247,901.40x = 820,103,937,644.51
  5. Step 5: Solve for x
    x = 820,103,937,644.51/1,247,901.40
  6. Step 6: Final answer
    x = 657,186.49

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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.