Home / 915,320.55-1,373,055.53-459,677.45

Finding the Fourth Proportional to 915,320.55, 1,373,055.53 and 459,677.45

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Solution

The fourth proportional to 915,320.55, 1,373,055.53 and 459,677.45 is: 689,553.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,320.55 : 1,373,055.53 = 459,677.45 : x
  2. Step 2: Convert to fraction form
    915,320.55/1,373,055.53 = 459,677.45/x
  3. Step 3: Cross multiply
    915,320.55x = 1,373,055.53 × 459,677.45
  4. Step 4: Simplify right side
    915,320.55x = 631,162,662,351.34
  5. Step 5: Solve for x
    x = 631,162,662,351.34/915,320.55
  6. Step 6: Final answer
    x = 689,553.69

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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.