Home / 989,428.44-1,365,411.69-559,699.41

Finding the Fourth Proportional to 989,428.44, 1,365,411.69 and 559,699.41

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Solution

The fourth proportional to 989,428.44, 1,365,411.69 and 559,699.41 is: 772,385.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,428.44 : 1,365,411.69 = 559,699.41 : x
  2. Step 2: Convert to fraction form
    989,428.44/1,365,411.69 = 559,699.41/x
  3. Step 3: Cross multiply
    989,428.44x = 1,365,411.69 × 559,699.41
  4. Step 4: Simplify right side
    989,428.44x = 764,220,117,300.10
  5. Step 5: Solve for x
    x = 764,220,117,300.10/989,428.44
  6. Step 6: Final answer
    x = 772,385.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.