Home / 636,210.18-877,976.22-345,823.02

Finding the Fourth Proportional to 636,210.18, 877,976.22 and 345,823.02

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Solution

The fourth proportional to 636,210.18, 877,976.22 and 345,823.02 is: 477,239.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,210.18 : 877,976.22 = 345,823.02 : x
  2. Step 2: Convert to fraction form
    636,210.18/877,976.22 = 345,823.02/x
  3. Step 3: Cross multiply
    636,210.18x = 877,976.22 × 345,823.02
  4. Step 4: Simplify right side
    636,210.18x = 303,624,387,888.58
  5. Step 5: Solve for x
    x = 303,624,387,888.58/636,210.18
  6. Step 6: Final answer
    x = 477,239.12

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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.