Home / 855,005.80-1,281,860.70-434,583.40

Finding the Fourth Proportional to 855,005.80, 1,281,860.70 and 434,583.40

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Solution

The fourth proportional to 855,005.80, 1,281,860.70 and 434,583.40 is: 651,545.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,005.80 : 1,281,860.70 = 434,583.40 : x
  2. Step 2: Convert to fraction form
    855,005.80/1,281,860.70 = 434,583.40/x
  3. Step 3: Cross multiply
    855,005.80x = 1,281,860.70 × 434,583.40
  4. Step 4: Simplify right side
    855,005.80x = 557,075,381,332.38
  5. Step 5: Solve for x
    x = 557,075,381,332.38/855,005.80
  6. Step 6: Final answer
    x = 651,545.73

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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.