Home / 931,521.40-1,397,282.10-813,423.40

Finding the Fourth Proportional to 931,521.40, 1,397,282.10 and 813,423.40

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Solution

The fourth proportional to 931,521.40, 1,397,282.10 and 813,423.40 is: 1,220,135.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,521.40 : 1,397,282.10 = 813,423.40 : x
  2. Step 2: Convert to fraction form
    931,521.40/1,397,282.10 = 813,423.40/x
  3. Step 3: Cross multiply
    931,521.40x = 1,397,282.10 × 813,423.40
  4. Step 4: Simplify right side
    931,521.40x = 1,136,581,956,541.14
  5. Step 5: Solve for x
    x = 1,136,581,956,541.14/931,521.40
  6. Step 6: Final answer
    x = 1,220,135.10

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1.5x scale

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.