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Finding the Fourth Proportional to 556,450.48, 767,919.05 and 314,728.32

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Solution

The fourth proportional to 556,450.48, 767,919.05 and 314,728.32 is: 434,334.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,450.48 : 767,919.05 = 314,728.32 : x
  2. Step 2: Convert to fraction form
    556,450.48/767,919.05 = 314,728.32/x
  3. Step 3: Cross multiply
    556,450.48x = 767,919.05 × 314,728.32
  4. Step 4: Simplify right side
    556,450.48x = 241,685,872,502.50
  5. Step 5: Solve for x
    x = 241,685,872,502.50/556,450.48
  6. Step 6: Final answer
    x = 434,334.92

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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.