Home / 1,036,557.08-1,555,031.64-405,431

Finding the Fourth Proportional to 1,036,557.08, 1,555,031.64 and 405,431

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Solution

The fourth proportional to 1,036,557.08, 1,555,031.64 and 405,431 is: 608,223.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036,557.08 : 1,555,031.64 = 405,431 : x
  2. Step 2: Convert to fraction form
    1,036,557.08/1,555,031.64 = 405,431/x
  3. Step 3: Cross multiply
    1,036,557.08x = 1,555,031.64 × 405,431
  4. Step 4: Simplify right side
    1,036,557.08x = 630,458,032,836.84
  5. Step 5: Solve for x
    x = 630,458,032,836.84/1,036,557.08
  6. Step 6: Final answer
    x = 608,223.17

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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.