Home / 346,448.72-478,429.40-327,579.70

Finding the Fourth Proportional to 346,448.72, 478,429.40 and 327,579.70

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Solution

The fourth proportional to 346,448.72, 478,429.40 and 327,579.70 is: 452,372.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,448.72 : 478,429.40 = 327,579.70 : x
  2. Step 2: Convert to fraction form
    346,448.72/478,429.40 = 327,579.70/x
  3. Step 3: Cross multiply
    346,448.72x = 478,429.40 × 327,579.70
  4. Step 4: Simplify right side
    346,448.72x = 156,723,759,323.18
  5. Step 5: Solve for x
    x = 156,723,759,323.18/346,448.72
  6. Step 6: Final answer
    x = 452,372.17

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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.