Home / 745,784.20-1,116,051.90-520,085.80

Finding the Fourth Proportional to 745,784.20, 1,116,051.90 and 520,085.80

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Solution

The fourth proportional to 745,784.20, 1,116,051.90 and 520,085.80 is: 778,298.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,784.20 : 1,116,051.90 = 520,085.80 : x
  2. Step 2: Convert to fraction form
    745,784.20/1,116,051.90 = 520,085.80/x
  3. Step 3: Cross multiply
    745,784.20x = 1,116,051.90 × 520,085.80
  4. Step 4: Simplify right side
    745,784.20x = 580,442,745,253.02
  5. Step 5: Solve for x
    x = 580,442,745,253.02/745,784.20
  6. Step 6: Final answer
    x = 778,298.53

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Double scale
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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.