Home / 1,390,682.80-2,085,505.80-549,060.40

Finding the Fourth Proportional to 1,390,682.80, 2,085,505.80 and 549,060.40

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Solution

The fourth proportional to 1,390,682.80, 2,085,505.80 and 549,060.40 is: 823,385.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,682.80 : 2,085,505.80 = 549,060.40 : x
  2. Step 2: Convert to fraction form
    1,390,682.80/2,085,505.80 = 549,060.40/x
  3. Step 3: Cross multiply
    1,390,682.80x = 2,085,505.80 × 549,060.40
  4. Step 4: Simplify right side
    1,390,682.80x = 1,145,068,648,750.32
  5. Step 5: Solve for x
    x = 1,145,068,648,750.32/1,390,682.80
  6. Step 6: Final answer
    x = 823,385.93

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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.