Home / 1,169,947-1,754,920.74-421,992.92

Finding the Fourth Proportional to 1,169,947, 1,754,920.74 and 421,992.92

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Solution

The fourth proportional to 1,169,947, 1,754,920.74 and 421,992.92 is: 632,989.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,169,947 : 1,754,920.74 = 421,992.92 : x
  2. Step 2: Convert to fraction form
    1,169,947/1,754,920.74 = 421,992.92/x
  3. Step 3: Cross multiply
    1,169,947x = 1,754,920.74 × 421,992.92
  4. Step 4: Simplify right side
    1,169,947x = 740,564,127,441.16
  5. Step 5: Solve for x
    x = 740,564,127,441.16/1,169,947
  6. Step 6: Final answer
    x = 632,989.47

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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.