Home / 771,712.38-1,157,151.06-612,810.63

Finding the Fourth Proportional to 771,712.38, 1,157,151.06 and 612,810.63

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Solution

The fourth proportional to 771,712.38, 1,157,151.06 and 612,810.63 is: 918,884.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,712.38 : 1,157,151.06 = 612,810.63 : x
  2. Step 2: Convert to fraction form
    771,712.38/1,157,151.06 = 612,810.63/x
  3. Step 3: Cross multiply
    771,712.38x = 1,157,151.06 × 612,810.63
  4. Step 4: Simplify right side
    771,712.38x = 709,114,470,083.77
  5. Step 5: Solve for x
    x = 709,114,470,083.77/771,712.38
  6. Step 6: Final answer
    x = 918,884.40

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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.