Home / 730,100.90-1,007,528.55-407,815.40

Finding the Fourth Proportional to 730,100.90, 1,007,528.55 and 407,815.40

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Solution

The fourth proportional to 730,100.90, 1,007,528.55 and 407,815.40 is: 562,779.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,100.90 : 1,007,528.55 = 407,815.40 : x
  2. Step 2: Convert to fraction form
    730,100.90/1,007,528.55 = 407,815.40/x
  3. Step 3: Cross multiply
    730,100.90x = 1,007,528.55 × 407,815.40
  4. Step 4: Simplify right side
    730,100.90x = 410,885,658,629.67
  5. Step 5: Solve for x
    x = 410,885,658,629.67/730,100.90
  6. Step 6: Final answer
    x = 562,779.28

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1.5x scale

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.