Home / 421,395.10-581,683.37-276,210.23

Finding the Fourth Proportional to 421,395.10, 581,683.37 and 276,210.23

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Solution

The fourth proportional to 421,395.10, 581,683.37 and 276,210.23 is: 381,273.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,395.10 : 581,683.37 = 276,210.23 : x
  2. Step 2: Convert to fraction form
    421,395.10/581,683.37 = 276,210.23/x
  3. Step 3: Cross multiply
    421,395.10x = 581,683.37 × 276,210.23
  4. Step 4: Simplify right side
    421,395.10x = 160,666,896,033.82
  5. Step 5: Solve for x
    x = 160,666,896,033.82/421,395.10
  6. Step 6: Final answer
    x = 381,273.77

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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.