Home / 1,218,705.02-1,681,792.37-674,829.12

Finding the Fourth Proportional to 1,218,705.02, 1,681,792.37 and 674,829.12

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Solution

The fourth proportional to 1,218,705.02, 1,681,792.37 and 674,829.12 is: 931,252.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,705.02 : 1,681,792.37 = 674,829.12 : x
  2. Step 2: Convert to fraction form
    1,218,705.02/1,681,792.37 = 674,829.12/x
  3. Step 3: Cross multiply
    1,218,705.02x = 1,681,792.37 × 674,829.12
  4. Step 4: Simplify right side
    1,218,705.02x = 1,134,922,461,695.67
  5. Step 5: Solve for x
    x = 1,134,922,461,695.67/1,218,705.02
  6. Step 6: Final answer
    x = 931,252.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.