Home / 718,530.40-1,077,795.60-435,095.20

Finding the Fourth Proportional to 718,530.40, 1,077,795.60 and 435,095.20

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Solution

The fourth proportional to 718,530.40, 1,077,795.60 and 435,095.20 is: 652,642.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,530.40 : 1,077,795.60 = 435,095.20 : x
  2. Step 2: Convert to fraction form
    718,530.40/1,077,795.60 = 435,095.20/x
  3. Step 3: Cross multiply
    718,530.40x = 1,077,795.60 × 435,095.20
  4. Step 4: Simplify right side
    718,530.40x = 468,943,692,141.12
  5. Step 5: Solve for x
    x = 468,943,692,141.12/718,530.40
  6. Step 6: Final answer
    x = 652,642.80

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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.