Home / 1,148,038.98-1,584,369.51-638,742.42

Finding the Fourth Proportional to 1,148,038.98, 1,584,369.51 and 638,742.42

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Solution

The fourth proportional to 1,148,038.98, 1,584,369.51 and 638,742.42 is: 881,506.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,038.98 : 1,584,369.51 = 638,742.42 : x
  2. Step 2: Convert to fraction form
    1,148,038.98/1,584,369.51 = 638,742.42/x
  3. Step 3: Cross multiply
    1,148,038.98x = 1,584,369.51 × 638,742.42
  4. Step 4: Simplify right side
    1,148,038.98x = 1,012,004,014,991.61
  5. Step 5: Solve for x
    x = 1,012,004,014,991.61/1,148,038.98
  6. Step 6: Final answer
    x = 881,506.67

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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.