Home / 842,390.12-1,161,829.50-636,346.10

Finding the Fourth Proportional to 842,390.12, 1,161,829.50 and 636,346.10

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Solution

The fourth proportional to 842,390.12, 1,161,829.50 and 636,346.10 is: 877,652.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,390.12 : 1,161,829.50 = 636,346.10 : x
  2. Step 2: Convert to fraction form
    842,390.12/1,161,829.50 = 636,346.10/x
  3. Step 3: Cross multiply
    842,390.12x = 1,161,829.50 × 636,346.10
  4. Step 4: Simplify right side
    842,390.12x = 739,325,671,189.95
  5. Step 5: Solve for x
    x = 739,325,671,189.95/842,390.12
  6. Step 6: Final answer
    x = 877,652.35

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1.5x scale

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.