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Finding the Fourth Proportional to 877,600.80, 1,316,401.20 and 779,623.20

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Solution

The fourth proportional to 877,600.80, 1,316,401.20 and 779,623.20 is: 1,169,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,600.80 : 1,316,401.20 = 779,623.20 : x
  2. Step 2: Convert to fraction form
    877,600.80/1,316,401.20 = 779,623.20/x
  3. Step 3: Cross multiply
    877,600.80x = 1,316,401.20 × 779,623.20
  4. Step 4: Simplify right side
    877,600.80x = 1,026,296,916,027.84
  5. Step 5: Solve for x
    x = 1,026,296,916,027.84/877,600.80
  6. Step 6: Final answer
    x = 1,169,434.80

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1.5x scale

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.