Home / 1,100,835.81-1,651,417.88-390,804.39

Finding the Fourth Proportional to 1,100,835.81, 1,651,417.88 and 390,804.39

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Solution

The fourth proportional to 1,100,835.81, 1,651,417.88 and 390,804.39 is: 586,264.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,835.81 : 1,651,417.88 = 390,804.39 : x
  2. Step 2: Convert to fraction form
    1,100,835.81/1,651,417.88 = 390,804.39/x
  3. Step 3: Cross multiply
    1,100,835.81x = 1,651,417.88 × 390,804.39
  4. Step 4: Simplify right side
    1,100,835.81x = 645,381,355,274.47
  5. Step 5: Solve for x
    x = 645,381,355,274.47/1,100,835.81
  6. Step 6: Final answer
    x = 586,264.86

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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.