Home / 786,123.40-1,179,174.12-448,443.28

Finding the Fourth Proportional to 786,123.40, 1,179,174.12 and 448,443.28

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Solution

The fourth proportional to 786,123.40, 1,179,174.12 and 448,443.28 is: 672,658.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,123.40 : 1,179,174.12 = 448,443.28 : x
  2. Step 2: Convert to fraction form
    786,123.40/1,179,174.12 = 448,443.28/x
  3. Step 3: Cross multiply
    786,123.40x = 1,179,174.12 × 448,443.28
  4. Step 4: Simplify right side
    786,123.40x = 528,792,710,063.91
  5. Step 5: Solve for x
    x = 528,792,710,063.91/786,123.40
  6. Step 6: Final answer
    x = 672,658.66

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1.5x scale

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.