Home / 554,624.23-829,747.41-420,075.89

Finding the Fourth Proportional to 554,624.23, 829,747.41 and 420,075.89

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Solution

The fourth proportional to 554,624.23, 829,747.41 and 420,075.89 is: 628,455.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,624.23 : 829,747.41 = 420,075.89 : x
  2. Step 2: Convert to fraction form
    554,624.23/829,747.41 = 420,075.89/x
  3. Step 3: Cross multiply
    554,624.23x = 829,747.41 × 420,075.89
  4. Step 4: Simplify right side
    554,624.23x = 348,556,879,630.57
  5. Step 5: Solve for x
    x = 348,556,879,630.57/554,624.23
  6. Step 6: Final answer
    x = 628,455.92

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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.