Home / 601,631.55-830,629.04-387,144.36

Finding the Fourth Proportional to 601,631.55, 830,629.04 and 387,144.36

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Solution

The fourth proportional to 601,631.55, 830,629.04 and 387,144.36 is: 534,502.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,631.55 : 830,629.04 = 387,144.36 : x
  2. Step 2: Convert to fraction form
    601,631.55/830,629.04 = 387,144.36/x
  3. Step 3: Cross multiply
    601,631.55x = 830,629.04 × 387,144.36
  4. Step 4: Simplify right side
    601,631.55x = 321,573,346,152.49
  5. Step 5: Solve for x
    x = 321,573,346,152.49/601,631.55
  6. Step 6: Final answer
    x = 534,502.13

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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.