Home / 1,006,705.69-1,389,254.08-553,996.69

Finding the Fourth Proportional to 1,006,705.69, 1,389,254.08 and 553,996.69

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Solution

The fourth proportional to 1,006,705.69, 1,389,254.08 and 553,996.69 is: 764,515.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,705.69 : 1,389,254.08 = 553,996.69 : x
  2. Step 2: Convert to fraction form
    1,006,705.69/1,389,254.08 = 553,996.69/x
  3. Step 3: Cross multiply
    1,006,705.69x = 1,389,254.08 × 553,996.69
  4. Step 4: Simplify right side
    1,006,705.69x = 769,642,161,889.00
  5. Step 5: Solve for x
    x = 769,642,161,889.00/1,006,705.69
  6. Step 6: Final answer
    x = 764,515.56

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Double scale
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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.