Home / 943,870.81-1,415,259.45-644,712.91

Finding the Fourth Proportional to 943,870.81, 1,415,259.45 and 644,712.91

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Solution

The fourth proportional to 943,870.81, 1,415,259.45 and 644,712.91 is: 966,695.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,870.81 : 1,415,259.45 = 644,712.91 : x
  2. Step 2: Convert to fraction form
    943,870.81/1,415,259.45 = 644,712.91/x
  3. Step 3: Cross multiply
    943,870.81x = 1,415,259.45 × 644,712.91
  4. Step 4: Simplify right side
    943,870.81x = 912,436,038,414.50
  5. Step 5: Solve for x
    x = 912,436,038,414.50/943,870.81
  6. Step 6: Final answer
    x = 966,695.90

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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.