Home / 989,187.24-1,484,699.40-390,561.60

Finding the Fourth Proportional to 989,187.24, 1,484,699.40 and 390,561.60

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Solution

The fourth proportional to 989,187.24, 1,484,699.40 and 390,561.60 is: 586,205.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,187.24 : 1,484,699.40 = 390,561.60 : x
  2. Step 2: Convert to fraction form
    989,187.24/1,484,699.40 = 390,561.60/x
  3. Step 3: Cross multiply
    989,187.24x = 1,484,699.40 × 390,561.60
  4. Step 4: Simplify right side
    989,187.24x = 579,866,573,183.04
  5. Step 5: Solve for x
    x = 579,866,573,183.04/989,187.24
  6. Step 6: Final answer
    x = 586,205.07

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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.