Home / 706,689.70-1,057,442.55-520,065.70

Finding the Fourth Proportional to 706,689.70, 1,057,442.55 and 520,065.70

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Solution

The fourth proportional to 706,689.70, 1,057,442.55 and 520,065.70 is: 778,191.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,689.70 : 1,057,442.55 = 520,065.70 : x
  2. Step 2: Convert to fraction form
    706,689.70/1,057,442.55 = 520,065.70/x
  3. Step 3: Cross multiply
    706,689.70x = 1,057,442.55 × 520,065.70
  4. Step 4: Simplify right side
    706,689.70x = 549,939,599,975.54
  5. Step 5: Solve for x
    x = 549,939,599,975.54/706,689.70
  6. Step 6: Final answer
    x = 778,191.05

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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.