Home / 931,528.40-1,397,292.60-813,430.40

Finding the Fourth Proportional to 931,528.40, 1,397,292.60 and 813,430.40

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Solution

The fourth proportional to 931,528.40, 1,397,292.60 and 813,430.40 is: 1,220,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,528.40 : 1,397,292.60 = 813,430.40 : x
  2. Step 2: Convert to fraction form
    931,528.40/1,397,292.60 = 813,430.40/x
  3. Step 3: Cross multiply
    931,528.40x = 1,397,292.60 × 813,430.40
  4. Step 4: Simplify right side
    931,528.40x = 1,136,600,278,535.04
  5. Step 5: Solve for x
    x = 1,136,600,278,535.04/931,528.40
  6. Step 6: Final answer
    x = 1,220,145.60

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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.