Home / 563,460.15-777,577.41-305,337.66

Finding the Fourth Proportional to 563,460.15, 777,577.41 and 305,337.66

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Solution

The fourth proportional to 563,460.15, 777,577.41 and 305,337.66 is: 421,367.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,460.15 : 777,577.41 = 305,337.66 : x
  2. Step 2: Convert to fraction form
    563,460.15/777,577.41 = 305,337.66/x
  3. Step 3: Cross multiply
    563,460.15x = 777,577.41 × 305,337.66
  4. Step 4: Simplify right side
    563,460.15x = 237,423,666,838.26
  5. Step 5: Solve for x
    x = 237,423,666,838.26/563,460.15
  6. Step 6: Final answer
    x = 421,367.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.