Home / 1,386,612.98-1,913,490.13-774,770.77

Finding the Fourth Proportional to 1,386,612.98, 1,913,490.13 and 774,770.77

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Solution

The fourth proportional to 1,386,612.98, 1,913,490.13 and 774,770.77 is: 1,069,163.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,612.98 : 1,913,490.13 = 774,770.77 : x
  2. Step 2: Convert to fraction form
    1,386,612.98/1,913,490.13 = 774,770.77/x
  3. Step 3: Cross multiply
    1,386,612.98x = 1,913,490.13 × 774,770.77
  4. Step 4: Simplify right side
    1,386,612.98x = 1,482,516,221,407.50
  5. Step 5: Solve for x
    x = 1,482,516,221,407.50/1,386,612.98
  6. Step 6: Final answer
    x = 1,069,163.67

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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.