Home / 1,870,403.40-2,805,605.10-672,364.80

Finding the Fourth Proportional to 1,870,403.40, 2,805,605.10 and 672,364.80

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Solution

The fourth proportional to 1,870,403.40, 2,805,605.10 and 672,364.80 is: 1,008,547.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,870,403.40 : 2,805,605.10 = 672,364.80 : x
  2. Step 2: Convert to fraction form
    1,870,403.40/2,805,605.10 = 672,364.80/x
  3. Step 3: Cross multiply
    1,870,403.40x = 2,805,605.10 × 672,364.80
  4. Step 4: Simplify right side
    1,870,403.40x = 1,886,390,111,940.48
  5. Step 5: Solve for x
    x = 1,886,390,111,940.48/1,870,403.40
  6. Step 6: Final answer
    x = 1,008,547.20

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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.