Home / 718,340.40-1,079,483.76-671,533.20

Finding the Fourth Proportional to 718,340.40, 1,079,483.76 and 671,533.20

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Solution

The fourth proportional to 718,340.40, 1,079,483.76 and 671,533.20 is: 1,009,144.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,340.40 : 1,079,483.76 = 671,533.20 : x
  2. Step 2: Convert to fraction form
    718,340.40/1,079,483.76 = 671,533.20/x
  3. Step 3: Cross multiply
    718,340.40x = 1,079,483.76 × 671,533.20
  4. Step 4: Simplify right side
    718,340.40x = 724,909,183,700.83
  5. Step 5: Solve for x
    x = 724,909,183,700.83/718,340.40
  6. Step 6: Final answer
    x = 1,009,144.39

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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.