Home / 989,421.96-1,365,402.72-559,692.96

Finding the Fourth Proportional to 989,421.96, 1,365,402.72 and 559,692.96

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Solution

The fourth proportional to 989,421.96, 1,365,402.72 and 559,692.96 is: 772,376.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,421.96 : 1,365,402.72 = 559,692.96 : x
  2. Step 2: Convert to fraction form
    989,421.96/1,365,402.72 = 559,692.96/x
  3. Step 3: Cross multiply
    989,421.96x = 1,365,402.72 × 559,692.96
  4. Step 4: Simplify right side
    989,421.96x = 764,206,289,948.85
  5. Step 5: Solve for x
    x = 764,206,289,948.85/989,421.96
  6. Step 6: Final answer
    x = 772,376.52

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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.