Home / 1,118,281.48-1,543,293.30-842,145

Finding the Fourth Proportional to 1,118,281.48, 1,543,293.30 and 842,145

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Solution

The fourth proportional to 1,118,281.48, 1,543,293.30 and 842,145 is: 1,162,208.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,281.48 : 1,543,293.30 = 842,145 : x
  2. Step 2: Convert to fraction form
    1,118,281.48/1,543,293.30 = 842,145/x
  3. Step 3: Cross multiply
    1,118,281.48x = 1,543,293.30 × 842,145
  4. Step 4: Simplify right side
    1,118,281.48x = 1,299,676,736,128.50
  5. Step 5: Solve for x
    x = 1,299,676,736,128.50/1,118,281.48
  6. Step 6: Final answer
    x = 1,162,208.94

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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.