Home / 897,309.60-1,345,502.70-266,141.40

Finding the Fourth Proportional to 897,309.60, 1,345,502.70 and 266,141.40

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Solution

The fourth proportional to 897,309.60, 1,345,502.70 and 266,141.40 is: 399,075.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,309.60 : 1,345,502.70 = 266,141.40 : x
  2. Step 2: Convert to fraction form
    897,309.60/1,345,502.70 = 266,141.40/x
  3. Step 3: Cross multiply
    897,309.60x = 1,345,502.70 × 266,141.40
  4. Step 4: Simplify right side
    897,309.60x = 358,093,972,281.78
  5. Step 5: Solve for x
    x = 358,093,972,281.78/897,309.60
  6. Step 6: Final answer
    x = 399,075.16

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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.