Home / 487,075.42-672,165.06-272,215.48

Finding the Fourth Proportional to 487,075.42, 672,165.06 and 272,215.48

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Solution

The fourth proportional to 487,075.42, 672,165.06 and 272,215.48 is: 375,657.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,075.42 : 672,165.06 = 272,215.48 : x
  2. Step 2: Convert to fraction form
    487,075.42/672,165.06 = 272,215.48/x
  3. Step 3: Cross multiply
    487,075.42x = 672,165.06 × 272,215.48
  4. Step 4: Simplify right side
    487,075.42x = 182,973,734,947.07
  5. Step 5: Solve for x
    x = 182,973,734,947.07/487,075.42
  6. Step 6: Final answer
    x = 375,657.91

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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.