Home / 886,123.18-1,222,688.69-498,878.38

Finding the Fourth Proportional to 886,123.18, 1,222,688.69 and 498,878.38

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Solution

The fourth proportional to 886,123.18, 1,222,688.69 and 498,878.38 is: 688,361.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,123.18 : 1,222,688.69 = 498,878.38 : x
  2. Step 2: Convert to fraction form
    886,123.18/1,222,688.69 = 498,878.38/x
  3. Step 3: Cross multiply
    886,123.18x = 1,222,688.69 × 498,878.38
  4. Step 4: Simplify right side
    886,123.18x = 609,972,950,417.13
  5. Step 5: Solve for x
    x = 609,972,950,417.13/886,123.18
  6. Step 6: Final answer
    x = 688,361.35

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1.5x scale

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.