Home / 879,543.63-1,213,823.88-492,351.48

Finding the Fourth Proportional to 879,543.63, 1,213,823.88 and 492,351.48

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Solution

The fourth proportional to 879,543.63, 1,213,823.88 and 492,351.48 is: 679,475.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,543.63 : 1,213,823.88 = 492,351.48 : x
  2. Step 2: Convert to fraction form
    879,543.63/1,213,823.88 = 492,351.48/x
  3. Step 3: Cross multiply
    879,543.63x = 1,213,823.88 × 492,351.48
  4. Step 4: Simplify right side
    879,543.63x = 597,627,983,777.34
  5. Step 5: Solve for x
    x = 597,627,983,777.34/879,543.63
  6. Step 6: Final answer
    x = 679,475.09

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1.5x scale

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.