Home / 788,655.42-1,088,344.52-426,079.28

Finding the Fourth Proportional to 788,655.42, 1,088,344.52 and 426,079.28

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Solution

The fourth proportional to 788,655.42, 1,088,344.52 and 426,079.28 is: 587,989.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,655.42 : 1,088,344.52 = 426,079.28 : x
  2. Step 2: Convert to fraction form
    788,655.42/1,088,344.52 = 426,079.28/x
  3. Step 3: Cross multiply
    788,655.42x = 1,088,344.52 × 426,079.28
  4. Step 4: Simplify right side
    788,655.42x = 463,721,041,901.43
  5. Step 5: Solve for x
    x = 463,721,041,901.43/788,655.42
  6. Step 6: Final answer
    x = 587,989.42

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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.