Home / 637,099.79-879,152.40-378,962.51

Finding the Fourth Proportional to 637,099.79, 879,152.40 and 378,962.51

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Solution

The fourth proportional to 637,099.79, 879,152.40 and 378,962.51 is: 522,941.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,099.79 : 879,152.40 = 378,962.51 : x
  2. Step 2: Convert to fraction form
    637,099.79/879,152.40 = 378,962.51/x
  3. Step 3: Cross multiply
    637,099.79x = 879,152.40 × 378,962.51
  4. Step 4: Simplify right side
    637,099.79x = 333,165,800,176.52
  5. Step 5: Solve for x
    x = 333,165,800,176.52/637,099.79
  6. Step 6: Final answer
    x = 522,941.31

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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.