Home / 687,302.94-1,030,617.12-282,421.80

Finding the Fourth Proportional to 687,302.94, 1,030,617.12 and 282,421.80

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Solution

The fourth proportional to 687,302.94, 1,030,617.12 and 282,421.80 is: 423,494.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,302.94 : 1,030,617.12 = 282,421.80 : x
  2. Step 2: Convert to fraction form
    687,302.94/1,030,617.12 = 282,421.80/x
  3. Step 3: Cross multiply
    687,302.94x = 1,030,617.12 × 282,421.80
  4. Step 4: Simplify right side
    687,302.94x = 291,068,742,141.22
  5. Step 5: Solve for x
    x = 291,068,742,141.22/687,302.94
  6. Step 6: Final answer
    x = 423,494.10

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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.