Home / 1,328,638.60-1,992,569.10-475,611.40

Finding the Fourth Proportional to 1,328,638.60, 1,992,569.10 and 475,611.40

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Solution

The fourth proportional to 1,328,638.60, 1,992,569.10 and 475,611.40 is: 713,277.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,638.60 : 1,992,569.10 = 475,611.40 : x
  2. Step 2: Convert to fraction form
    1,328,638.60/1,992,569.10 = 475,611.40/x
  3. Step 3: Cross multiply
    1,328,638.60x = 1,992,569.10 × 475,611.40
  4. Step 4: Simplify right side
    1,328,638.60x = 947,688,579,247.74
  5. Step 5: Solve for x
    x = 947,688,579,247.74/1,328,638.60
  6. Step 6: Final answer
    x = 713,277.92

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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.