Home / 1,289,810.46-1,779,925.59-716,838.33

Finding the Fourth Proportional to 1,289,810.46, 1,779,925.59 and 716,838.33

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Solution

The fourth proportional to 1,289,810.46, 1,779,925.59 and 716,838.33 is: 989,229.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,810.46 : 1,779,925.59 = 716,838.33 : x
  2. Step 2: Convert to fraction form
    1,289,810.46/1,779,925.59 = 716,838.33/x
  3. Step 3: Cross multiply
    1,289,810.46x = 1,779,925.59 × 716,838.33
  4. Step 4: Simplify right side
    1,289,810.46x = 1,275,918,887,459.86
  5. Step 5: Solve for x
    x = 1,275,918,887,459.86/1,289,810.46
  6. Step 6: Final answer
    x = 989,229.76

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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.