Home / 745,084.80-1,117,345.14-318,602.76

Finding the Fourth Proportional to 745,084.80, 1,117,345.14 and 318,602.76

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Solution

The fourth proportional to 745,084.80, 1,117,345.14 and 318,602.76 is: 477,783.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,084.80 : 1,117,345.14 = 318,602.76 : x
  2. Step 2: Convert to fraction form
    745,084.80/1,117,345.14 = 318,602.76/x
  3. Step 3: Cross multiply
    745,084.80x = 1,117,345.14 × 318,602.76
  4. Step 4: Simplify right side
    745,084.80x = 355,989,245,476.59
  5. Step 5: Solve for x
    x = 355,989,245,476.59/745,084.80
  6. Step 6: Final answer
    x = 477,783.53

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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.