Home / 865,442.45-1,298,403.64-360,241.40

Finding the Fourth Proportional to 865,442.45, 1,298,403.64 and 360,241.40

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Solution

The fourth proportional to 865,442.45, 1,298,403.64 and 360,241.40 is: 540,461.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,442.45 : 1,298,403.64 = 360,241.40 : x
  2. Step 2: Convert to fraction form
    865,442.45/1,298,403.64 = 360,241.40/x
  3. Step 3: Cross multiply
    865,442.45x = 1,298,403.64 × 360,241.40
  4. Step 4: Simplify right side
    865,442.45x = 467,738,745,038.70
  5. Step 5: Solve for x
    x = 467,738,745,038.70/865,442.45
  6. Step 6: Final answer
    x = 540,461.99

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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.