Home / 839,430.93-1,158,380.91-457,449.51

Finding the Fourth Proportional to 839,430.93, 1,158,380.91 and 457,449.51

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Solution

The fourth proportional to 839,430.93, 1,158,380.91 and 457,449.51 is: 631,261.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,430.93 : 1,158,380.91 = 457,449.51 : x
  2. Step 2: Convert to fraction form
    839,430.93/1,158,380.91 = 457,449.51/x
  3. Step 3: Cross multiply
    839,430.93x = 1,158,380.91 × 457,449.51
  4. Step 4: Simplify right side
    839,430.93x = 529,900,779,672.85
  5. Step 5: Solve for x
    x = 529,900,779,672.85/839,430.93
  6. Step 6: Final answer
    x = 631,261.92

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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.