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Finding the Fourth Proportional to 560,015.80, 840,023.70 and 346,953.40

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Solution

The fourth proportional to 560,015.80, 840,023.70 and 346,953.40 is: 520,430.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,015.80 : 840,023.70 = 346,953.40 : x
  2. Step 2: Convert to fraction form
    560,015.80/840,023.70 = 346,953.40/x
  3. Step 3: Cross multiply
    560,015.80x = 840,023.70 × 346,953.40
  4. Step 4: Simplify right side
    560,015.80x = 291,449,078,795.58
  5. Step 5: Solve for x
    x = 291,449,078,795.58/560,015.80
  6. Step 6: Final answer
    x = 520,430.10

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Similar ratio
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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.