Home / 859,782.46-1,187,714.02-688,835.60

Finding the Fourth Proportional to 859,782.46, 1,187,714.02 and 688,835.60

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Solution

The fourth proportional to 859,782.46, 1,187,714.02 and 688,835.60 is: 951,565.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,782.46 : 1,187,714.02 = 688,835.60 : x
  2. Step 2: Convert to fraction form
    859,782.46/1,187,714.02 = 688,835.60/x
  3. Step 3: Cross multiply
    859,782.46x = 1,187,714.02 × 688,835.60
  4. Step 4: Simplify right side
    859,782.46x = 818,139,699,595.11
  5. Step 5: Solve for x
    x = 818,139,699,595.11/859,782.46
  6. Step 6: Final answer
    x = 951,565.93

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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.