Home / 687,364.71-1,030,719.83-282,493.64

Finding the Fourth Proportional to 687,364.71, 1,030,719.83 and 282,493.64

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Solution

The fourth proportional to 687,364.71, 1,030,719.83 and 282,493.64 is: 423,605.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,364.71 : 1,030,719.83 = 282,493.64 : x
  2. Step 2: Convert to fraction form
    687,364.71/1,030,719.83 = 282,493.64/x
  3. Step 3: Cross multiply
    687,364.71x = 1,030,719.83 × 282,493.64
  4. Step 4: Simplify right side
    687,364.71x = 291,171,790,030.81
  5. Step 5: Solve for x
    x = 291,171,790,030.81/687,364.71
  6. Step 6: Final answer
    x = 423,605.96

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1.5x scale

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.