Home / 1,118,132.80-1,677,417.90-478,435.30

Finding the Fourth Proportional to 1,118,132.80, 1,677,417.90 and 478,435.30

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Solution

The fourth proportional to 1,118,132.80, 1,677,417.90 and 478,435.30 is: 717,746.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,132.80 : 1,677,417.90 = 478,435.30 : x
  2. Step 2: Convert to fraction form
    1,118,132.80/1,677,417.90 = 478,435.30/x
  3. Step 3: Cross multiply
    1,118,132.80x = 1,677,417.90 × 478,435.30
  4. Step 4: Simplify right side
    1,118,132.80x = 802,535,936,211.87
  5. Step 5: Solve for x
    x = 802,535,936,211.87/1,118,132.80
  6. Step 6: Final answer
    x = 717,746.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.