Home / 989,643.80-1,484,465.70-674,715.80

Finding the Fourth Proportional to 989,643.80, 1,484,465.70 and 674,715.80

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Solution

The fourth proportional to 989,643.80, 1,484,465.70 and 674,715.80 is: 1,012,073.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,643.80 : 1,484,465.70 = 674,715.80 : x
  2. Step 2: Convert to fraction form
    989,643.80/1,484,465.70 = 674,715.80/x
  3. Step 3: Cross multiply
    989,643.80x = 1,484,465.70 × 674,715.80
  4. Step 4: Simplify right side
    989,643.80x = 1,001,592,462,348.06
  5. Step 5: Solve for x
    x = 1,001,592,462,348.06/989,643.80
  6. Step 6: Final answer
    x = 1,012,073.70

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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.