Home / 684,064.69-943,779.12-442,652.69

Finding the Fourth Proportional to 684,064.69, 943,779.12 and 442,652.69

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Solution

The fourth proportional to 684,064.69, 943,779.12 and 442,652.69 is: 610,711.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,064.69 : 943,779.12 = 442,652.69 : x
  2. Step 2: Convert to fraction form
    684,064.69/943,779.12 = 442,652.69/x
  3. Step 3: Cross multiply
    684,064.69x = 943,779.12 × 442,652.69
  4. Step 4: Simplify right side
    684,064.69x = 417,766,366,233.83
  5. Step 5: Solve for x
    x = 417,766,366,233.83/684,064.69
  6. Step 6: Final answer
    x = 610,711.78

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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.