Home / 875,130.40-1,312,695.60-476,999.20

Finding the Fourth Proportional to 875,130.40, 1,312,695.60 and 476,999.20

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Solution

The fourth proportional to 875,130.40, 1,312,695.60 and 476,999.20 is: 715,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,130.40 : 1,312,695.60 = 476,999.20 : x
  2. Step 2: Convert to fraction form
    875,130.40/1,312,695.60 = 476,999.20/x
  3. Step 3: Cross multiply
    875,130.40x = 1,312,695.60 × 476,999.20
  4. Step 4: Simplify right side
    875,130.40x = 626,154,751,043.52
  5. Step 5: Solve for x
    x = 626,154,751,043.52/875,130.40
  6. Step 6: Final answer
    x = 715,498.80

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Similar ratio
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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.