Home / 1,185,890.04-1,636,516.80-642,011.88

Finding the Fourth Proportional to 1,185,890.04, 1,636,516.80 and 642,011.88

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Solution

The fourth proportional to 1,185,890.04, 1,636,516.80 and 642,011.88 is: 885,970.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,890.04 : 1,636,516.80 = 642,011.88 : x
  2. Step 2: Convert to fraction form
    1,185,890.04/1,636,516.80 = 642,011.88/x
  3. Step 3: Cross multiply
    1,185,890.04x = 1,636,516.80 × 642,011.88
  4. Step 4: Simplify right side
    1,185,890.04x = 1,050,663,227,419.58
  5. Step 5: Solve for x
    x = 1,050,663,227,419.58/1,185,890.04
  6. Step 6: Final answer
    x = 885,970.19

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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.