Home / 1,072,688.84-1,609,240.70-407,789

Finding the Fourth Proportional to 1,072,688.84, 1,609,240.70 and 407,789

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Solution

The fourth proportional to 1,072,688.84, 1,609,240.70 and 407,789 is: 611,762.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,688.84 : 1,609,240.70 = 407,789 : x
  2. Step 2: Convert to fraction form
    1,072,688.84/1,609,240.70 = 407,789/x
  3. Step 3: Cross multiply
    1,072,688.84x = 1,609,240.70 × 407,789
  4. Step 4: Simplify right side
    1,072,688.84x = 656,230,655,812.30
  5. Step 5: Solve for x
    x = 656,230,655,812.30/1,072,688.84
  6. Step 6: Final answer
    x = 611,762.36

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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.