Home / 670,153.40-1,004,664.87-290,788.89

Finding the Fourth Proportional to 670,153.40, 1,004,664.87 and 290,788.89

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Solution

The fourth proportional to 670,153.40, 1,004,664.87 and 290,788.89 is: 435,938.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,153.40 : 1,004,664.87 = 290,788.89 : x
  2. Step 2: Convert to fraction form
    670,153.40/1,004,664.87 = 290,788.89/x
  3. Step 3: Cross multiply
    670,153.40x = 1,004,664.87 × 290,788.89
  4. Step 4: Simplify right side
    670,153.40x = 292,145,378,601.80
  5. Step 5: Solve for x
    x = 292,145,378,601.80/670,153.40
  6. Step 6: Final answer
    x = 435,938.07

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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.