Home / 747,383.76-1,031,389.74-425,156.40

Finding the Fourth Proportional to 747,383.76, 1,031,389.74 and 425,156.40

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Solution

The fourth proportional to 747,383.76, 1,031,389.74 and 425,156.40 is: 586,715.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,383.76 : 1,031,389.74 = 425,156.40 : x
  2. Step 2: Convert to fraction form
    747,383.76/1,031,389.74 = 425,156.40/x
  3. Step 3: Cross multiply
    747,383.76x = 1,031,389.74 × 425,156.40
  4. Step 4: Simplify right side
    747,383.76x = 438,501,948,855.34
  5. Step 5: Solve for x
    x = 438,501,948,855.34/747,383.76
  6. Step 6: Final answer
    x = 586,715.92

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1.5x scale

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.