Home / 842,905.20-1,264,357.80-488,611.20

Finding the Fourth Proportional to 842,905.20, 1,264,357.80 and 488,611.20

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Solution

The fourth proportional to 842,905.20, 1,264,357.80 and 488,611.20 is: 732,916.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,905.20 : 1,264,357.80 = 488,611.20 : x
  2. Step 2: Convert to fraction form
    842,905.20/1,264,357.80 = 488,611.20/x
  3. Step 3: Cross multiply
    842,905.20x = 1,264,357.80 × 488,611.20
  4. Step 4: Simplify right side
    842,905.20x = 617,779,381,887.36
  5. Step 5: Solve for x
    x = 617,779,381,887.36/842,905.20
  6. Step 6: Final answer
    x = 732,916.80

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1.5x scale

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.