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Finding the Fourth Proportional to 670,560.51, 925,345.35 and 380,191.62

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Solution

The fourth proportional to 670,560.51, 925,345.35 and 380,191.62 is: 524,648.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,560.51 : 925,345.35 = 380,191.62 : x
  2. Step 2: Convert to fraction form
    670,560.51/925,345.35 = 380,191.62/x
  3. Step 3: Cross multiply
    670,560.51x = 925,345.35 × 380,191.62
  4. Step 4: Simplify right side
    670,560.51x = 351,808,547,675.97
  5. Step 5: Solve for x
    x = 351,808,547,675.97/670,560.51
  6. Step 6: Final answer
    x = 524,648.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.