Home / 1,314,211.40-1,971,317.10-816,547.40

Finding the Fourth Proportional to 1,314,211.40, 1,971,317.10 and 816,547.40

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Solution

The fourth proportional to 1,314,211.40, 1,971,317.10 and 816,547.40 is: 1,224,821.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,211.40 : 1,971,317.10 = 816,547.40 : x
  2. Step 2: Convert to fraction form
    1,314,211.40/1,971,317.10 = 816,547.40/x
  3. Step 3: Cross multiply
    1,314,211.40x = 1,971,317.10 × 816,547.40
  4. Step 4: Simplify right side
    1,314,211.40x = 1,609,673,852,580.54
  5. Step 5: Solve for x
    x = 1,609,673,852,580.54/1,314,211.40
  6. Step 6: Final answer
    x = 1,224,821.10

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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.