Home / 875,851.20-1,312,869.60-475,646.40

Finding the Fourth Proportional to 875,851.20, 1,312,869.60 and 475,646.40

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Solution

The fourth proportional to 875,851.20, 1,312,869.60 and 475,646.40 is: 712,976.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,851.20 : 1,312,869.60 = 475,646.40 : x
  2. Step 2: Convert to fraction form
    875,851.20/1,312,869.60 = 475,646.40/x
  3. Step 3: Cross multiply
    875,851.20x = 1,312,869.60 × 475,646.40
  4. Step 4: Simplify right side
    875,851.20x = 624,461,698,909.44
  5. Step 5: Solve for x
    x = 624,461,698,909.44/875,851.20
  6. Step 6: Final answer
    x = 712,976.93

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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.