Home / 840,880.90-1,258,368.90-575,160.40

Finding the Fourth Proportional to 840,880.90, 1,258,368.90 and 575,160.40

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Solution

The fourth proportional to 840,880.90, 1,258,368.90 and 575,160.40 is: 860,721.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,880.90 : 1,258,368.90 = 575,160.40 : x
  2. Step 2: Convert to fraction form
    840,880.90/1,258,368.90 = 575,160.40/x
  3. Step 3: Cross multiply
    840,880.90x = 1,258,368.90 × 575,160.40
  4. Step 4: Simplify right side
    840,880.90x = 723,763,959,871.56
  5. Step 5: Solve for x
    x = 723,763,959,871.56/840,880.90
  6. Step 6: Final answer
    x = 860,721.13

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1.5x scale

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.