Home / 706,688.20-1,057,440.30-520,064.20

Finding the Fourth Proportional to 706,688.20, 1,057,440.30 and 520,064.20

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Solution

The fourth proportional to 706,688.20, 1,057,440.30 and 520,064.20 is: 778,188.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,688.20 : 1,057,440.30 = 520,064.20 : x
  2. Step 2: Convert to fraction form
    706,688.20/1,057,440.30 = 520,064.20/x
  3. Step 3: Cross multiply
    706,688.20x = 1,057,440.30 × 520,064.20
  4. Step 4: Simplify right side
    706,688.20x = 549,936,843,667.26
  5. Step 5: Solve for x
    x = 549,936,843,667.26/706,688.20
  6. Step 6: Final answer
    x = 778,188.80

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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.