Home / 2,688,971.40-4,038,122.70-1,429,259.40

Finding the Fourth Proportional to 2,688,971.40, 4,038,122.70 and 1,429,259.40

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Solution

The fourth proportional to 2,688,971.40, 4,038,122.70 and 1,429,259.40 is: 2,146,368.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,971.40 : 4,038,122.70 = 1,429,259.40 : x
  2. Step 2: Convert to fraction form
    2,688,971.40/4,038,122.70 = 1,429,259.40/x
  3. Step 3: Cross multiply
    2,688,971.40x = 4,038,122.70 × 1,429,259.40
  4. Step 4: Simplify right side
    2,688,971.40x = 5,771,524,827,328.38
  5. Step 5: Solve for x
    x = 5,771,524,827,328.38/2,688,971.40
  6. Step 6: Final answer
    x = 2,146,368.99

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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.