Home / 1,437,095.40-2,155,643.10-989,197.80

Finding the Fourth Proportional to 1,437,095.40, 2,155,643.10 and 989,197.80

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Solution

The fourth proportional to 1,437,095.40, 2,155,643.10 and 989,197.80 is: 1,483,796.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437,095.40 : 2,155,643.10 = 989,197.80 : x
  2. Step 2: Convert to fraction form
    1,437,095.40/2,155,643.10 = 989,197.80/x
  3. Step 3: Cross multiply
    1,437,095.40x = 2,155,643.10 × 989,197.80
  4. Step 4: Simplify right side
    1,437,095.40x = 2,132,357,412,105.18
  5. Step 5: Solve for x
    x = 2,132,357,412,105.18/1,437,095.40
  6. Step 6: Final answer
    x = 1,483,796.70

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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.