Home / 988,298.72-1,363,853.40-535,589.72

Finding the Fourth Proportional to 988,298.72, 1,363,853.40 and 535,589.72

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Solution

The fourth proportional to 988,298.72, 1,363,853.40 and 535,589.72 is: 739,114.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,298.72 : 1,363,853.40 = 535,589.72 : x
  2. Step 2: Convert to fraction form
    988,298.72/1,363,853.40 = 535,589.72/x
  3. Step 3: Cross multiply
    988,298.72x = 1,363,853.40 × 535,589.72
  4. Step 4: Simplify right side
    988,298.72x = 730,465,860,627.05
  5. Step 5: Solve for x
    x = 730,465,860,627.05/988,298.72
  6. Step 6: Final answer
    x = 739,114.45

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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.