Home / 637,301.49-879,487.25-346,921.40

Finding the Fourth Proportional to 637,301.49, 879,487.25 and 346,921.40

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Solution

The fourth proportional to 637,301.49, 879,487.25 and 346,921.40 is: 478,757.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,301.49 : 879,487.25 = 346,921.40 : x
  2. Step 2: Convert to fraction form
    637,301.49/879,487.25 = 346,921.40/x
  3. Step 3: Cross multiply
    637,301.49x = 879,487.25 × 346,921.40
  4. Step 4: Simplify right side
    637,301.49x = 305,112,948,516.26
  5. Step 5: Solve for x
    x = 305,112,948,516.26/637,301.49
  6. Step 6: Final answer
    x = 478,757.63

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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.