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Finding the Fourth Proportional to 637,094.79, 879,145.50 and 378,957.51

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Solution

The fourth proportional to 637,094.79, 879,145.50 and 378,957.51 is: 522,934.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,094.79 : 879,145.50 = 378,957.51 : x
  2. Step 2: Convert to fraction form
    637,094.79/879,145.50 = 378,957.51/x
  3. Step 3: Cross multiply
    637,094.79x = 879,145.50 × 378,957.51
  4. Step 4: Simplify right side
    637,094.79x = 333,158,789,607.71
  5. Step 5: Solve for x
    x = 333,158,789,607.71/637,094.79
  6. Step 6: Final answer
    x = 522,934.41

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1.5x scale

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.