Home / 916,848.72-1,375,273.62-317,809.98

Finding the Fourth Proportional to 916,848.72, 1,375,273.62 and 317,809.98

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Solution

The fourth proportional to 916,848.72, 1,375,273.62 and 317,809.98 is: 476,715.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,848.72 : 1,375,273.62 = 317,809.98 : x
  2. Step 2: Convert to fraction form
    916,848.72/1,375,273.62 = 317,809.98/x
  3. Step 3: Cross multiply
    916,848.72x = 1,375,273.62 × 317,809.98
  4. Step 4: Simplify right side
    916,848.72x = 437,075,681,666.73
  5. Step 5: Solve for x
    x = 437,075,681,666.73/916,848.72
  6. Step 6: Final answer
    x = 476,715.16

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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.