Home / 1,114,312.20-1,671,477.90-315,611.40

Finding the Fourth Proportional to 1,114,312.20, 1,671,477.90 and 315,611.40

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Solution

The fourth proportional to 1,114,312.20, 1,671,477.90 and 315,611.40 is: 473,419.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114,312.20 : 1,671,477.90 = 315,611.40 : x
  2. Step 2: Convert to fraction form
    1,114,312.20/1,671,477.90 = 315,611.40/x
  3. Step 3: Cross multiply
    1,114,312.20x = 1,671,477.90 × 315,611.40
  4. Step 4: Simplify right side
    1,114,312.20x = 527,537,480,088.06
  5. Step 5: Solve for x
    x = 527,537,480,088.06/1,114,312.20
  6. Step 6: Final answer
    x = 473,419.82

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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.