Home / 648,055.05-972,082.58-611,313.45

Finding the Fourth Proportional to 648,055.05, 972,082.58 and 611,313.45

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Solution

The fourth proportional to 648,055.05, 972,082.58 and 611,313.45 is: 916,970.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,055.05 : 972,082.58 = 611,313.45 : x
  2. Step 2: Convert to fraction form
    648,055.05/972,082.58 = 611,313.45/x
  3. Step 3: Cross multiply
    648,055.05x = 972,082.58 × 611,313.45
  4. Step 4: Simplify right side
    648,055.05x = 594,247,152,608.13
  5. Step 5: Solve for x
    x = 594,247,152,608.13/648,055.05
  6. Step 6: Final answer
    x = 916,970.18

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Similar ratio
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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.