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Finding the Fourth Proportional to 556,871.80, 835,307.70 and 400,574.20

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Solution

The fourth proportional to 556,871.80, 835,307.70 and 400,574.20 is: 600,861.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,871.80 : 835,307.70 = 400,574.20 : x
  2. Step 2: Convert to fraction form
    556,871.80/835,307.70 = 400,574.20/x
  3. Step 3: Cross multiply
    556,871.80x = 835,307.70 × 400,574.20
  4. Step 4: Simplify right side
    556,871.80x = 334,602,713,681.34
  5. Step 5: Solve for x
    x = 334,602,713,681.34/556,871.80
  6. Step 6: Final answer
    x = 600,861.30

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Similar ratio
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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.