Home / 910,280.48-1,365,421.40-311,246.15

Finding the Fourth Proportional to 910,280.48, 1,365,421.40 and 311,246.15

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Solution

The fourth proportional to 910,280.48, 1,365,421.40 and 311,246.15 is: 466,869.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,280.48 : 1,365,421.40 = 311,246.15 : x
  2. Step 2: Convert to fraction form
    910,280.48/1,365,421.40 = 311,246.15/x
  3. Step 3: Cross multiply
    910,280.48x = 1,365,421.40 × 311,246.15
  4. Step 4: Simplify right side
    910,280.48x = 424,982,148,412.21
  5. Step 5: Solve for x
    x = 424,982,148,412.21/910,280.48
  6. Step 6: Final answer
    x = 466,869.45

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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.