Home / 1,639,557.40-2,459,681.70-692,440.60

Finding the Fourth Proportional to 1,639,557.40, 2,459,681.70 and 692,440.60

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Solution

The fourth proportional to 1,639,557.40, 2,459,681.70 and 692,440.60 is: 1,038,806.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639,557.40 : 2,459,681.70 = 692,440.60 : x
  2. Step 2: Convert to fraction form
    1,639,557.40/2,459,681.70 = 692,440.60/x
  3. Step 3: Cross multiply
    1,639,557.40x = 2,459,681.70 × 692,440.60
  4. Step 4: Simplify right side
    1,639,557.40x = 1,703,183,472,157.02
  5. Step 5: Solve for x
    x = 1,703,183,472,157.02/1,639,557.40
  6. Step 6: Final answer
    x = 1,038,806.86

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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.