Home / 856,669.80-1,283,870.70-456,448.80

Finding the Fourth Proportional to 856,669.80, 1,283,870.70 and 456,448.80

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Solution

The fourth proportional to 856,669.80, 1,283,870.70 and 456,448.80 is: 684,068.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,669.80 : 1,283,870.70 = 456,448.80 : x
  2. Step 2: Convert to fraction form
    856,669.80/1,283,870.70 = 456,448.80/x
  3. Step 3: Cross multiply
    856,669.80x = 1,283,870.70 × 456,448.80
  4. Step 4: Simplify right side
    856,669.80x = 586,021,240,370.16
  5. Step 5: Solve for x
    x = 586,021,240,370.16/856,669.80
  6. Step 6: Final answer
    x = 684,068.98

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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.