Home / 1,069,221.49-1,603,352.88-637,142.73

Finding the Fourth Proportional to 1,069,221.49, 1,603,352.88 and 637,142.73

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Solution

The fourth proportional to 1,069,221.49, 1,603,352.88 and 637,142.73 is: 955,428.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,221.49 : 1,603,352.88 = 637,142.73 : x
  2. Step 2: Convert to fraction form
    1,069,221.49/1,603,352.88 = 637,142.73/x
  3. Step 3: Cross multiply
    1,069,221.49x = 1,603,352.88 × 637,142.73
  4. Step 4: Simplify right side
    1,069,221.49x = 1,021,564,638,632.28
  5. Step 5: Solve for x
    x = 1,021,564,638,632.28/1,069,221.49
  6. Step 6: Final answer
    x = 955,428.46

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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.