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Finding the Fourth Proportional to 667,075.62, 920,547.36 and 372,727.74

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Solution

The fourth proportional to 667,075.62, 920,547.36 and 372,727.74 is: 514,354.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,075.62 : 920,547.36 = 372,727.74 : x
  2. Step 2: Convert to fraction form
    667,075.62/920,547.36 = 372,727.74/x
  3. Step 3: Cross multiply
    667,075.62x = 920,547.36 × 372,727.74
  4. Step 4: Simplify right side
    667,075.62x = 343,113,537,055.77
  5. Step 5: Solve for x
    x = 343,113,537,055.77/667,075.62
  6. Step 6: Final answer
    x = 514,354.78

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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.