Home / 762,623.72-1,052,420.33-418,461.87

Finding the Fourth Proportional to 762,623.72, 1,052,420.33 and 418,461.87

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Solution

The fourth proportional to 762,623.72, 1,052,420.33 and 418,461.87 is: 577,477.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,623.72 : 1,052,420.33 = 418,461.87 : x
  2. Step 2: Convert to fraction form
    762,623.72/1,052,420.33 = 418,461.87/x
  3. Step 3: Cross multiply
    762,623.72x = 1,052,420.33 × 418,461.87
  4. Step 4: Simplify right side
    762,623.72x = 440,397,779,317.82
  5. Step 5: Solve for x
    x = 440,397,779,317.82/762,623.72
  6. Step 6: Final answer
    x = 577,477.16

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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.