Home / 1,006,707.79-1,389,256.98-553,998.79

Finding the Fourth Proportional to 1,006,707.79, 1,389,256.98 and 553,998.79

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Solution

The fourth proportional to 1,006,707.79, 1,389,256.98 and 553,998.79 is: 764,518.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,707.79 : 1,389,256.98 = 553,998.79 : x
  2. Step 2: Convert to fraction form
    1,006,707.79/1,389,256.98 = 553,998.79/x
  3. Step 3: Cross multiply
    1,006,707.79x = 1,389,256.98 × 553,998.79
  4. Step 4: Simplify right side
    1,006,707.79x = 769,646,685,919.05
  5. Step 5: Solve for x
    x = 769,646,685,919.05/1,006,707.79
  6. Step 6: Final answer
    x = 764,518.46

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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.