Home / 772,913.80-1,159,370.70-520,971.40

Finding the Fourth Proportional to 772,913.80, 1,159,370.70 and 520,971.40

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Solution

The fourth proportional to 772,913.80, 1,159,370.70 and 520,971.40 is: 781,457.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,913.80 : 1,159,370.70 = 520,971.40 : x
  2. Step 2: Convert to fraction form
    772,913.80/1,159,370.70 = 520,971.40/x
  3. Step 3: Cross multiply
    772,913.80x = 1,159,370.70 × 520,971.40
  4. Step 4: Simplify right side
    772,913.80x = 603,998,976,697.98
  5. Step 5: Solve for x
    x = 603,998,976,697.98/772,913.80
  6. Step 6: Final answer
    x = 781,457.10

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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.