Home / 830,339.70-1,245,509.55-725,363.70

Finding the Fourth Proportional to 830,339.70, 1,245,509.55 and 725,363.70

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Solution

The fourth proportional to 830,339.70, 1,245,509.55 and 725,363.70 is: 1,088,045.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,339.70 : 1,245,509.55 = 725,363.70 : x
  2. Step 2: Convert to fraction form
    830,339.70/1,245,509.55 = 725,363.70/x
  3. Step 3: Cross multiply
    830,339.70x = 1,245,509.55 × 725,363.70
  4. Step 4: Simplify right side
    830,339.70x = 903,447,415,573.34
  5. Step 5: Solve for x
    x = 903,447,415,573.34/830,339.70
  6. Step 6: Final answer
    x = 1,088,045.55

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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.