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Finding the Fourth Proportional to 575,689.20, 863,525.70 and 260,145.60

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Solution

The fourth proportional to 575,689.20, 863,525.70 and 260,145.60 is: 390,214.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,689.20 : 863,525.70 = 260,145.60 : x
  2. Step 2: Convert to fraction form
    575,689.20/863,525.70 = 260,145.60/x
  3. Step 3: Cross multiply
    575,689.20x = 863,525.70 × 260,145.60
  4. Step 4: Simplify right side
    575,689.20x = 224,642,411,341.92
  5. Step 5: Solve for x
    x = 224,642,411,341.92/575,689.20
  6. Step 6: Final answer
    x = 390,214.74

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1.5x scale

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.