Home / 1,289,463.84-1,779,477.84-716,493.60

Finding the Fourth Proportional to 1,289,463.84, 1,779,477.84 and 716,493.60

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Solution

The fourth proportional to 1,289,463.84, 1,779,477.84 and 716,493.60 is: 988,771.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,463.84 : 1,779,477.84 = 716,493.60 : x
  2. Step 2: Convert to fraction form
    1,289,463.84/1,779,477.84 = 716,493.60/x
  3. Step 3: Cross multiply
    1,289,463.84x = 1,779,477.84 × 716,493.60
  4. Step 4: Simplify right side
    1,289,463.84x = 1,274,984,483,701.82
  5. Step 5: Solve for x
    x = 1,274,984,483,701.82/1,289,463.84
  6. Step 6: Final answer
    x = 988,771.03

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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.