Home / 813,746.13-1,220,669.93-214,707.86

Finding the Fourth Proportional to 813,746.13, 1,220,669.93 and 214,707.86

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Solution

The fourth proportional to 813,746.13, 1,220,669.93 and 214,707.86 is: 322,075.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,746.13 : 1,220,669.93 = 214,707.86 : x
  2. Step 2: Convert to fraction form
    813,746.13/1,220,669.93 = 214,707.86/x
  3. Step 3: Cross multiply
    813,746.13x = 1,220,669.93 × 214,707.86
  4. Step 4: Simplify right side
    813,746.13x = 262,087,434,313.85
  5. Step 5: Solve for x
    x = 262,087,434,313.85/813,746.13
  6. Step 6: Final answer
    x = 322,075.18

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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.