Home / 497,210.10-686,131.80-303,941.50

Finding the Fourth Proportional to 497,210.10, 686,131.80 and 303,941.50

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Solution

The fourth proportional to 497,210.10, 686,131.80 and 303,941.50 is: 419,428.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,210.10 : 686,131.80 = 303,941.50 : x
  2. Step 2: Convert to fraction form
    497,210.10/686,131.80 = 303,941.50/x
  3. Step 3: Cross multiply
    497,210.10x = 686,131.80 × 303,941.50
  4. Step 4: Simplify right side
    497,210.10x = 208,543,925,634.59
  5. Step 5: Solve for x
    x = 208,543,925,634.59/497,210.10
  6. Step 6: Final answer
    x = 419,428.18

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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.