Home / 762,123.90-1,051,745.41-417,938.02

Finding the Fourth Proportional to 762,123.90, 1,051,745.41 and 417,938.02

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Solution

The fourth proportional to 762,123.90, 1,051,745.41 and 417,938.02 is: 576,762.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,123.90 : 1,051,745.41 = 417,938.02 : x
  2. Step 2: Convert to fraction form
    762,123.90/1,051,745.41 = 417,938.02/x
  3. Step 3: Cross multiply
    762,123.90x = 1,051,745.41 × 417,938.02
  4. Step 4: Simplify right side
    762,123.90x = 439,564,394,199.49
  5. Step 5: Solve for x
    x = 439,564,394,199.49/762,123.90
  6. Step 6: Final answer
    x = 576,762.38

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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.