Home / 1,289,459.05-1,779,493.49-708,671.60

Finding the Fourth Proportional to 1,289,459.05, 1,779,493.49 and 708,671.60

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Solution

The fourth proportional to 1,289,459.05, 1,779,493.49 and 708,671.60 is: 977,988.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,459.05 : 1,779,493.49 = 708,671.60 : x
  2. Step 2: Convert to fraction form
    1,289,459.05/1,779,493.49 = 708,671.60/x
  3. Step 3: Cross multiply
    1,289,459.05x = 1,779,493.49 × 708,671.60
  4. Step 4: Simplify right side
    1,289,459.05x = 1,261,076,495,637.68
  5. Step 5: Solve for x
    x = 1,261,076,495,637.68/1,289,459.05
  6. Step 6: Final answer
    x = 977,988.79

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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.