Home / 772,439.34-1,158,659.73-439,315.50

Finding the Fourth Proportional to 772,439.34, 1,158,659.73 and 439,315.50

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Solution

The fourth proportional to 772,439.34, 1,158,659.73 and 439,315.50 is: 658,973.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,439.34 : 1,158,659.73 = 439,315.50 : x
  2. Step 2: Convert to fraction form
    772,439.34/1,158,659.73 = 439,315.50/x
  3. Step 3: Cross multiply
    772,439.34x = 1,158,659.73 × 439,315.50
  4. Step 4: Simplify right side
    772,439.34x = 509,017,178,614.82
  5. Step 5: Solve for x
    x = 509,017,178,614.82/772,439.34
  6. Step 6: Final answer
    x = 658,973.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.