Home / 492,123.04-679,132.12-277,266.40

Finding the Fourth Proportional to 492,123.04, 679,132.12 and 277,266.40

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Solution

The fourth proportional to 492,123.04, 679,132.12 and 277,266.40 is: 382,628.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,123.04 : 679,132.12 = 277,266.40 : x
  2. Step 2: Convert to fraction form
    492,123.04/679,132.12 = 277,266.40/x
  3. Step 3: Cross multiply
    492,123.04x = 679,132.12 × 277,266.40
  4. Step 4: Simplify right side
    492,123.04x = 188,300,518,036.77
  5. Step 5: Solve for x
    x = 188,300,518,036.77/492,123.04
  6. Step 6: Final answer
    x = 382,628.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.