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Finding the Fourth Proportional to 493,541.80, 740,312.70 and 417,434.20

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Solution

The fourth proportional to 493,541.80, 740,312.70 and 417,434.20 is: 626,151.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,541.80 : 740,312.70 = 417,434.20 : x
  2. Step 2: Convert to fraction form
    493,541.80/740,312.70 = 417,434.20/x
  3. Step 3: Cross multiply
    493,541.80x = 740,312.70 × 417,434.20
  4. Step 4: Simplify right side
    493,541.80x = 309,031,839,674.34
  5. Step 5: Solve for x
    x = 309,031,839,674.34/493,541.80
  6. Step 6: Final answer
    x = 626,151.30

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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.