Home / 855,647.70-1,180,423.17-515,927.22

Finding the Fourth Proportional to 855,647.70, 1,180,423.17 and 515,927.22

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Solution

The fourth proportional to 855,647.70, 1,180,423.17 and 515,927.22 is: 711,756.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,647.70 : 1,180,423.17 = 515,927.22 : x
  2. Step 2: Convert to fraction form
    855,647.70/1,180,423.17 = 515,927.22/x
  3. Step 3: Cross multiply
    855,647.70x = 1,180,423.17 × 515,927.22
  4. Step 4: Simplify right side
    855,647.70x = 609,012,444,521.69
  5. Step 5: Solve for x
    x = 609,012,444,521.69/855,647.70
  6. Step 6: Final answer
    x = 711,756.07

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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.