Home / 745,784.70-1,116,052.65-520,086.30

Finding the Fourth Proportional to 745,784.70, 1,116,052.65 and 520,086.30

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Solution

The fourth proportional to 745,784.70, 1,116,052.65 and 520,086.30 is: 778,299.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,784.70 : 1,116,052.65 = 520,086.30 : x
  2. Step 2: Convert to fraction form
    745,784.70/1,116,052.65 = 520,086.30/x
  3. Step 3: Cross multiply
    745,784.70x = 1,116,052.65 × 520,086.30
  4. Step 4: Simplify right side
    745,784.70x = 580,443,693,343.70
  5. Step 5: Solve for x
    x = 580,443,693,343.70/745,784.70
  6. Step 6: Final answer
    x = 778,299.28

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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.