Home / 918,543.15-1,378,047.60-649,201.23

Finding the Fourth Proportional to 918,543.15, 1,378,047.60 and 649,201.23

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Solution

The fourth proportional to 918,543.15, 1,378,047.60 and 649,201.23 is: 973,966.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,543.15 : 1,378,047.60 = 649,201.23 : x
  2. Step 2: Convert to fraction form
    918,543.15/1,378,047.60 = 649,201.23/x
  3. Step 3: Cross multiply
    918,543.15x = 1,378,047.60 × 649,201.23
  4. Step 4: Simplify right side
    918,543.15x = 894,630,196,918.55
  5. Step 5: Solve for x
    x = 894,630,196,918.55/918,543.15
  6. Step 6: Final answer
    x = 973,966.43

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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.