Home / 1,006,111.12-1,388,404.36-553,402.12

Finding the Fourth Proportional to 1,006,111.12, 1,388,404.36 and 553,402.12

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Solution

The fourth proportional to 1,006,111.12, 1,388,404.36 and 553,402.12 is: 763,678.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,111.12 : 1,388,404.36 = 553,402.12 : x
  2. Step 2: Convert to fraction form
    1,006,111.12/1,388,404.36 = 553,402.12/x
  3. Step 3: Cross multiply
    1,006,111.12x = 1,388,404.36 × 553,402.12
  4. Step 4: Simplify right side
    1,006,111.12x = 768,345,916,241.24
  5. Step 5: Solve for x
    x = 768,345,916,241.24/1,006,111.12
  6. Step 6: Final answer
    x = 763,678.98

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1.5x scale

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.