Home / 1,298,756.84-1,791,123.84-815,367.06

Finding the Fourth Proportional to 1,298,756.84, 1,791,123.84 and 815,367.06

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Solution

The fourth proportional to 1,298,756.84, 1,791,123.84 and 815,367.06 is: 1,124,477.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,756.84 : 1,791,123.84 = 815,367.06 : x
  2. Step 2: Convert to fraction form
    1,298,756.84/1,791,123.84 = 815,367.06/x
  3. Step 3: Cross multiply
    1,298,756.84x = 1,791,123.84 × 815,367.06
  4. Step 4: Simplify right side
    1,298,756.84x = 1,460,423,379,516.71
  5. Step 5: Solve for x
    x = 1,460,423,379,516.71/1,298,756.84
  6. Step 6: Final answer
    x = 1,124,477.92

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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.