Home / 1,249,811.64-1,724,911.74-766,291.32

Finding the Fourth Proportional to 1,249,811.64, 1,724,911.74 and 766,291.32

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Solution

The fourth proportional to 1,249,811.64, 1,724,911.74 and 766,291.32 is: 1,057,587.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,811.64 : 1,724,911.74 = 766,291.32 : x
  2. Step 2: Convert to fraction form
    1,249,811.64/1,724,911.74 = 766,291.32/x
  3. Step 3: Cross multiply
    1,249,811.64x = 1,724,911.74 × 766,291.32
  4. Step 4: Simplify right side
    1,249,811.64x = 1,321,784,894,128.10
  5. Step 5: Solve for x
    x = 1,321,784,894,128.10/1,249,811.64
  6. Step 6: Final answer
    x = 1,057,587.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.