Home / 1,260,302.92-1,890,700.44-407,586.40

Finding the Fourth Proportional to 1,260,302.92, 1,890,700.44 and 407,586.40

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Solution

The fourth proportional to 1,260,302.92, 1,890,700.44 and 407,586.40 is: 611,459.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,302.92 : 1,890,700.44 = 407,586.40 : x
  2. Step 2: Convert to fraction form
    1,260,302.92/1,890,700.44 = 407,586.40/x
  3. Step 3: Cross multiply
    1,260,302.92x = 1,890,700.44 × 407,586.40
  4. Step 4: Simplify right side
    1,260,302.92x = 770,623,785,818.02
  5. Step 5: Solve for x
    x = 770,623,785,818.02/1,260,302.92
  6. Step 6: Final answer
    x = 611,459.18

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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.