Home / 1,570,404.72-2,167,223.64-891,404.40

Finding the Fourth Proportional to 1,570,404.72, 2,167,223.64 and 891,404.40

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Solution

The fourth proportional to 1,570,404.72, 2,167,223.64 and 891,404.40 is: 1,230,175.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570,404.72 : 2,167,223.64 = 891,404.40 : x
  2. Step 2: Convert to fraction form
    1,570,404.72/2,167,223.64 = 891,404.40/x
  3. Step 3: Cross multiply
    1,570,404.72x = 2,167,223.64 × 891,404.40
  4. Step 4: Simplify right side
    1,570,404.72x = 1,931,872,688,480.02
  5. Step 5: Solve for x
    x = 1,931,872,688,480.02/1,570,404.72
  6. Step 6: Final answer
    x = 1,230,175.04

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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.