Home / 891,678.51-1,230,516.36-509,713.52

Finding the Fourth Proportional to 891,678.51, 1,230,516.36 and 509,713.52

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Solution

The fourth proportional to 891,678.51, 1,230,516.36 and 509,713.52 is: 703,404.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,678.51 : 1,230,516.36 = 509,713.52 : x
  2. Step 2: Convert to fraction form
    891,678.51/1,230,516.36 = 509,713.52/x
  3. Step 3: Cross multiply
    891,678.51x = 1,230,516.36 × 509,713.52
  4. Step 4: Simplify right side
    891,678.51x = 627,210,819,120.61
  5. Step 5: Solve for x
    x = 627,210,819,120.61/891,678.51
  6. Step 6: Final answer
    x = 703,404.66

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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.