Home / 875,123.60-1,312,588.20-717,076.40

Finding the Fourth Proportional to 875,123.60, 1,312,588.20 and 717,076.40

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Solution

The fourth proportional to 875,123.60, 1,312,588.20 and 717,076.40 is: 1,075,534.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,123.60 : 1,312,588.20 = 717,076.40 : x
  2. Step 2: Convert to fraction form
    875,123.60/1,312,588.20 = 717,076.40/x
  3. Step 3: Cross multiply
    875,123.60x = 1,312,588.20 × 717,076.40
  4. Step 4: Simplify right side
    875,123.60x = 941,226,021,138.48
  5. Step 5: Solve for x
    x = 941,226,021,138.48/875,123.60
  6. Step 6: Final answer
    x = 1,075,534.95

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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.