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Finding the Fourth Proportional to 560,323.20, 839,901.60 and 307,214.40

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Solution

The fourth proportional to 560,323.20, 839,901.60 and 307,214.40 is: 460,501.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,323.20 : 839,901.60 = 307,214.40 : x
  2. Step 2: Convert to fraction form
    560,323.20/839,901.60 = 307,214.40/x
  3. Step 3: Cross multiply
    560,323.20x = 839,901.60 × 307,214.40
  4. Step 4: Simplify right side
    560,323.20x = 258,029,866,103.04
  5. Step 5: Solve for x
    x = 258,029,866,103.04/560,323.20
  6. Step 6: Final answer
    x = 460,501.84

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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.