Home / 1,543,501.20-2,315,251.80-421,570.20

Finding the Fourth Proportional to 1,543,501.20, 2,315,251.80 and 421,570.20

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Solution

The fourth proportional to 1,543,501.20, 2,315,251.80 and 421,570.20 is: 632,355.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,501.20 : 2,315,251.80 = 421,570.20 : x
  2. Step 2: Convert to fraction form
    1,543,501.20/2,315,251.80 = 421,570.20/x
  3. Step 3: Cross multiply
    1,543,501.20x = 2,315,251.80 × 421,570.20
  4. Step 4: Simplify right side
    1,543,501.20x = 976,041,164,376.36
  5. Step 5: Solve for x
    x = 976,041,164,376.36/1,543,501.20
  6. Step 6: Final answer
    x = 632,355.30

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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.