Home / 931,541.40-1,397,312.10-813,443.40

Finding the Fourth Proportional to 931,541.40, 1,397,312.10 and 813,443.40

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Solution

The fourth proportional to 931,541.40, 1,397,312.10 and 813,443.40 is: 1,220,165.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,541.40 : 1,397,312.10 = 813,443.40 : x
  2. Step 2: Convert to fraction form
    931,541.40/1,397,312.10 = 813,443.40/x
  3. Step 3: Cross multiply
    931,541.40x = 1,397,312.10 × 813,443.40
  4. Step 4: Simplify right side
    931,541.40x = 1,136,634,305,485.14
  5. Step 5: Solve for x
    x = 1,136,634,305,485.14/931,541.40
  6. Step 6: Final answer
    x = 1,220,165.10

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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.