Home / 747,089.74-1,030,904.36-420,397.06

Finding the Fourth Proportional to 747,089.74, 1,030,904.36 and 420,397.06

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Solution

The fourth proportional to 747,089.74, 1,030,904.36 and 420,397.06 is: 580,103.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,089.74 : 1,030,904.36 = 420,397.06 : x
  2. Step 2: Convert to fraction form
    747,089.74/1,030,904.36 = 420,397.06/x
  3. Step 3: Cross multiply
    747,089.74x = 1,030,904.36 × 420,397.06
  4. Step 4: Simplify right side
    747,089.74x = 433,389,162,085.18
  5. Step 5: Solve for x
    x = 433,389,162,085.18/747,089.74
  6. Step 6: Final answer
    x = 580,103.22

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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.