Home / 747,792,704.40-1,121,689,056.60-620,390,720.40

Finding the Fourth Proportional to 747,792,704.40, 1,121,689,056.60 and 620,390,720.40

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Solution

The fourth proportional to 747,792,704.40, 1,121,689,056.60 and 620,390,720.40 is: 930,586,080.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,792,704.40 : 1,121,689,056.60 = 620,390,720.40 : x
  2. Step 2: Convert to fraction form
    747,792,704.40/1,121,689,056.60 = 620,390,720.40/x
  3. Step 3: Cross multiply
    747,792,704.40x = 1,121,689,056.60 × 620,390,720.40
  4. Step 4: Simplify right side
    747,792,704.40x = 695,885,481,888,870,272
  5. Step 5: Solve for x
    x = 695,885,481,888,870,272/747,792,704.40
  6. Step 6: Final answer
    x = 930,586,080.60

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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.