Home / 1,543,065.40-2,314,598.10-421,247.80

Finding the Fourth Proportional to 1,543,065.40, 2,314,598.10 and 421,247.80

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Solution

The fourth proportional to 1,543,065.40, 2,314,598.10 and 421,247.80 is: 631,871.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,065.40 : 2,314,598.10 = 421,247.80 : x
  2. Step 2: Convert to fraction form
    1,543,065.40/2,314,598.10 = 421,247.80/x
  3. Step 3: Cross multiply
    1,543,065.40x = 2,314,598.10 × 421,247.80
  4. Step 4: Simplify right side
    1,543,065.40x = 975,019,357,509.18
  5. Step 5: Solve for x
    x = 975,019,357,509.18/1,543,065.40
  6. Step 6: Final answer
    x = 631,871.70

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Double scale
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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.