Home / 711,041.28-1,063,941.09-426,904.48

Finding the Fourth Proportional to 711,041.28, 1,063,941.09 and 426,904.48

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Solution

The fourth proportional to 711,041.28, 1,063,941.09 and 426,904.48 is: 638,783.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,041.28 : 1,063,941.09 = 426,904.48 : x
  2. Step 2: Convert to fraction form
    711,041.28/1,063,941.09 = 426,904.48/x
  3. Step 3: Cross multiply
    711,041.28x = 1,063,941.09 × 426,904.48
  4. Step 4: Simplify right side
    711,041.28x = 454,201,217,777.08
  5. Step 5: Solve for x
    x = 454,201,217,777.08/711,041.28
  6. Step 6: Final answer
    x = 638,783.19

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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.