Home / 904,721.80-1,355,114.40-549,115.60

Finding the Fourth Proportional to 904,721.80, 1,355,114.40 and 549,115.60

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Solution

The fourth proportional to 904,721.80, 1,355,114.40 and 549,115.60 is: 822,478.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,721.80 : 1,355,114.40 = 549,115.60 : x
  2. Step 2: Convert to fraction form
    904,721.80/1,355,114.40 = 549,115.60/x
  3. Step 3: Cross multiply
    904,721.80x = 1,355,114.40 × 549,115.60
  4. Step 4: Simplify right side
    904,721.80x = 744,114,456,824.64
  5. Step 5: Solve for x
    x = 744,114,456,824.64/904,721.80
  6. Step 6: Final answer
    x = 822,478.75

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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.