Home / 636,975.59-878,999.96-346,588.35

Finding the Fourth Proportional to 636,975.59, 878,999.96 and 346,588.35

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Solution

The fourth proportional to 636,975.59, 878,999.96 and 346,588.35 is: 478,277.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,975.59 : 878,999.96 = 346,588.35 : x
  2. Step 2: Convert to fraction form
    636,975.59/878,999.96 = 346,588.35/x
  3. Step 3: Cross multiply
    636,975.59x = 878,999.96 × 346,588.35
  4. Step 4: Simplify right side
    636,975.59x = 304,651,144,053.52
  5. Step 5: Solve for x
    x = 304,651,144,053.52/636,975.59
  6. Step 6: Final answer
    x = 478,277.58

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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.