Home / 745,710.30-1,118,747.70-346,266.90

Finding the Fourth Proportional to 745,710.30, 1,118,747.70 and 346,266.90

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Solution

The fourth proportional to 745,710.30, 1,118,747.70 and 346,266.90 is: 519,484.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,710.30 : 1,118,747.70 = 346,266.90 : x
  2. Step 2: Convert to fraction form
    745,710.30/1,118,747.70 = 346,266.90/x
  3. Step 3: Cross multiply
    745,710.30x = 1,118,747.70 × 346,266.90
  4. Step 4: Simplify right side
    745,710.30x = 387,385,297,961.13
  5. Step 5: Solve for x
    x = 387,385,297,961.13/745,710.30
  6. Step 6: Final answer
    x = 519,484.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.