Home / 896,300.70-1,344,688.65-390,644.70

Finding the Fourth Proportional to 896,300.70, 1,344,688.65 and 390,644.70

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Solution

The fourth proportional to 896,300.70, 1,344,688.65 and 390,644.70 is: 586,070.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,300.70 : 1,344,688.65 = 390,644.70 : x
  2. Step 2: Convert to fraction form
    896,300.70/1,344,688.65 = 390,644.70/x
  3. Step 3: Cross multiply
    896,300.70x = 1,344,688.65 × 390,644.70
  4. Step 4: Simplify right side
    896,300.70x = 525,295,494,272.66
  5. Step 5: Solve for x
    x = 525,295,494,272.66/896,300.70
  6. Step 6: Final answer
    x = 586,070.61

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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.