Home / 745,123.90-1,116,920.40-365,460.70

Finding the Fourth Proportional to 745,123.90, 1,116,920.40 and 365,460.70

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Solution

The fourth proportional to 745,123.90, 1,116,920.40 and 365,460.70 is: 547,815.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,123.90 : 1,116,920.40 = 365,460.70 : x
  2. Step 2: Convert to fraction form
    745,123.90/1,116,920.40 = 365,460.70/x
  3. Step 3: Cross multiply
    745,123.90x = 1,116,920.40 × 365,460.70
  4. Step 4: Simplify right side
    745,123.90x = 408,190,511,228.28
  5. Step 5: Solve for x
    x = 408,190,511,228.28/745,123.90
  6. Step 6: Final answer
    x = 547,815.62

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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.