Home / 1,289,436.03-1,779,386.40-716,461.47

Finding the Fourth Proportional to 1,289,436.03, 1,779,386.40 and 716,461.47

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Solution

The fourth proportional to 1,289,436.03, 1,779,386.40 and 716,461.47 is: 988,697.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,436.03 : 1,779,386.40 = 716,461.47 : x
  2. Step 2: Convert to fraction form
    1,289,436.03/1,779,386.40 = 716,461.47/x
  3. Step 3: Cross multiply
    1,289,436.03x = 1,779,386.40 × 716,461.47
  4. Step 4: Simplify right side
    1,289,436.03x = 1,274,861,795,842.01
  5. Step 5: Solve for x
    x = 1,274,861,795,842.01/1,289,436.03
  6. Step 6: Final answer
    x = 988,697.20

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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.