Home / 553,619.03-763,994.25-298,970.19

Finding the Fourth Proportional to 553,619.03, 763,994.25 and 298,970.19

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Solution

The fourth proportional to 553,619.03, 763,994.25 and 298,970.19 is: 412,578.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,619.03 : 763,994.25 = 298,970.19 : x
  2. Step 2: Convert to fraction form
    553,619.03/763,994.25 = 298,970.19/x
  3. Step 3: Cross multiply
    553,619.03x = 763,994.25 × 298,970.19
  4. Step 4: Simplify right side
    553,619.03x = 228,411,506,081.41
  5. Step 5: Solve for x
    x = 228,411,506,081.41/553,619.03
  6. Step 6: Final answer
    x = 412,578.86

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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.