Home / 637,101.79-879,155.16-378,964.51

Finding the Fourth Proportional to 637,101.79, 879,155.16 and 378,964.51

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Solution

The fourth proportional to 637,101.79, 879,155.16 and 378,964.51 is: 522,944.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,101.79 : 879,155.16 = 378,964.51 : x
  2. Step 2: Convert to fraction form
    637,101.79/879,155.16 = 378,964.51/x
  3. Step 3: Cross multiply
    637,101.79x = 879,155.16 × 378,964.51
  4. Step 4: Simplify right side
    637,101.79x = 333,168,604,423.37
  5. Step 5: Solve for x
    x = 333,168,604,423.37/637,101.79
  6. Step 6: Final answer
    x = 522,944.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.