Home / 1,218,734.86-1,827,018.18-578,643.70

Finding the Fourth Proportional to 1,218,734.86, 1,827,018.18 and 578,643.70

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Solution

The fourth proportional to 1,218,734.86, 1,827,018.18 and 578,643.70 is: 867,450.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,734.86 : 1,827,018.18 = 578,643.70 : x
  2. Step 2: Convert to fraction form
    1,218,734.86/1,827,018.18 = 578,643.70/x
  3. Step 3: Cross multiply
    1,218,734.86x = 1,827,018.18 × 578,643.70
  4. Step 4: Simplify right side
    1,218,734.86x = 1,057,192,559,642.47
  5. Step 5: Solve for x
    x = 1,057,192,559,642.47/1,218,734.86
  6. Step 6: Final answer
    x = 867,450.82

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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.