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Finding the Fourth Proportional to 570,281.30, 786,934.87 and 340,793.05

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Solution

The fourth proportional to 570,281.30, 786,934.87 and 340,793.05 is: 470,262.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,281.30 : 786,934.87 = 340,793.05 : x
  2. Step 2: Convert to fraction form
    570,281.30/786,934.87 = 340,793.05/x
  3. Step 3: Cross multiply
    570,281.30x = 786,934.87 × 340,793.05
  4. Step 4: Simplify right side
    570,281.30x = 268,181,934,498.65
  5. Step 5: Solve for x
    x = 268,181,934,498.65/570,281.30
  6. Step 6: Final answer
    x = 470,262.54

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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.