Home / 856,461.40-1,284,692.10-501,875.80

Finding the Fourth Proportional to 856,461.40, 1,284,692.10 and 501,875.80

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Solution

The fourth proportional to 856,461.40, 1,284,692.10 and 501,875.80 is: 752,813.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,461.40 : 1,284,692.10 = 501,875.80 : x
  2. Step 2: Convert to fraction form
    856,461.40/1,284,692.10 = 501,875.80/x
  3. Step 3: Cross multiply
    856,461.40x = 1,284,692.10 × 501,875.80
  4. Step 4: Simplify right side
    856,461.40x = 644,755,875,441.18
  5. Step 5: Solve for x
    x = 644,755,875,441.18/856,461.40
  6. Step 6: Final answer
    x = 752,813.70

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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.