Home / 823,488.64-1,235,332.59-290,900.68

Finding the Fourth Proportional to 823,488.64, 1,235,332.59 and 290,900.68

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Solution

The fourth proportional to 823,488.64, 1,235,332.59 and 290,900.68 is: 436,386.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,488.64 : 1,235,332.59 = 290,900.68 : x
  2. Step 2: Convert to fraction form
    823,488.64/1,235,332.59 = 290,900.68/x
  3. Step 3: Cross multiply
    823,488.64x = 1,235,332.59 × 290,900.68
  4. Step 4: Simplify right side
    823,488.64x = 359,359,090,457.16
  5. Step 5: Solve for x
    x = 359,359,090,457.16/823,488.64
  6. Step 6: Final answer
    x = 436,386.21

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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.