Home / 1,006,382-1,388,807.16-553,663.28

Finding the Fourth Proportional to 1,006,382, 1,388,807.16 and 553,663.28

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Solution

The fourth proportional to 1,006,382, 1,388,807.16 and 553,663.28 is: 764,055.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,382 : 1,388,807.16 = 553,663.28 : x
  2. Step 2: Convert to fraction form
    1,006,382/1,388,807.16 = 553,663.28/x
  3. Step 3: Cross multiply
    1,006,382x = 1,388,807.16 × 553,663.28
  4. Step 4: Simplify right side
    1,006,382x = 768,931,527,493.09
  5. Step 5: Solve for x
    x = 768,931,527,493.09/1,006,382
  6. Step 6: Final answer
    x = 764,055.33

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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.