Home / 692,123.04-1,038,178.08-218,808.45

Finding the Fourth Proportional to 692,123.04, 1,038,178.08 and 218,808.45

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Solution

The fourth proportional to 692,123.04, 1,038,178.08 and 218,808.45 is: 328,210.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,123.04 : 1,038,178.08 = 218,808.45 : x
  2. Step 2: Convert to fraction form
    692,123.04/1,038,178.08 = 218,808.45/x
  3. Step 3: Cross multiply
    692,123.04x = 1,038,178.08 × 218,808.45
  4. Step 4: Simplify right side
    692,123.04x = 227,162,136,508.78
  5. Step 5: Solve for x
    x = 227,162,136,508.78/692,123.04
  6. Step 6: Final answer
    x = 328,210.63

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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.