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Finding the Fourth Proportional to 767,779.74, 1,059,875.82 and 495,980.10

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Solution

The fourth proportional to 767,779.74, 1,059,875.82 and 495,980.10 is: 684,672.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,779.74 : 1,059,875.82 = 495,980.10 : x
  2. Step 2: Convert to fraction form
    767,779.74/1,059,875.82 = 495,980.10/x
  3. Step 3: Cross multiply
    767,779.74x = 1,059,875.82 × 495,980.10
  4. Step 4: Simplify right side
    767,779.74x = 525,677,315,191.18
  5. Step 5: Solve for x
    x = 525,677,315,191.18/767,779.74
  6. Step 6: Final answer
    x = 684,672.03

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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.