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Finding the Fourth Proportional to 607,300.80, 911,210.40 and 291,595.20

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Solution

The fourth proportional to 607,300.80, 911,210.40 and 291,595.20 is: 437,517.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,300.80 : 911,210.40 = 291,595.20 : x
  2. Step 2: Convert to fraction form
    607,300.80/911,210.40 = 291,595.20/x
  3. Step 3: Cross multiply
    607,300.80x = 911,210.40 × 291,595.20
  4. Step 4: Simplify right side
    607,300.80x = 265,704,578,830.08
  5. Step 5: Solve for x
    x = 265,704,578,830.08/607,300.80
  6. Step 6: Final answer
    x = 437,517.25

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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.