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Finding the Fourth Proportional to 530,410.95, 795,341.16 and 260,420.40

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Solution

The fourth proportional to 530,410.95, 795,341.16 and 260,420.40 is: 390,495.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,410.95 : 795,341.16 = 260,420.40 : x
  2. Step 2: Convert to fraction form
    530,410.95/795,341.16 = 260,420.40/x
  3. Step 3: Cross multiply
    530,410.95x = 795,341.16 × 260,420.40
  4. Step 4: Simplify right side
    530,410.95x = 207,123,063,023.66
  5. Step 5: Solve for x
    x = 207,123,063,023.66/530,410.95
  6. Step 6: Final answer
    x = 390,495.45

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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.