Home / 1,178,866.50-1,626,835.77-642,322.50

Finding the Fourth Proportional to 1,178,866.50, 1,626,835.77 and 642,322.50

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Solution

The fourth proportional to 1,178,866.50, 1,626,835.77 and 642,322.50 is: 886,405.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,866.50 : 1,626,835.77 = 642,322.50 : x
  2. Step 2: Convert to fraction form
    1,178,866.50/1,626,835.77 = 642,322.50/x
  3. Step 3: Cross multiply
    1,178,866.50x = 1,626,835.77 × 642,322.50
  4. Step 4: Simplify right side
    1,178,866.50x = 1,044,953,218,875.83
  5. Step 5: Solve for x
    x = 1,044,953,218,875.83/1,178,866.50
  6. Step 6: Final answer
    x = 886,405.05

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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.