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Finding the Fourth Proportional to 559,875.80, 839,813.70 and 346,813.40

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Solution

The fourth proportional to 559,875.80, 839,813.70 and 346,813.40 is: 520,220.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,875.80 : 839,813.70 = 346,813.40 : x
  2. Step 2: Convert to fraction form
    559,875.80/839,813.70 = 346,813.40/x
  3. Step 3: Cross multiply
    559,875.80x = 839,813.70 × 346,813.40
  4. Step 4: Simplify right side
    559,875.80x = 291,258,644,663.58
  5. Step 5: Solve for x
    x = 291,258,644,663.58/559,875.80
  6. Step 6: Final answer
    x = 520,220.10

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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.