Home / 673,779.40-1,010,669.10-434,630.95

Finding the Fourth Proportional to 673,779.40, 1,010,669.10 and 434,630.95

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Solution

The fourth proportional to 673,779.40, 1,010,669.10 and 434,630.95 is: 651,946.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,779.40 : 1,010,669.10 = 434,630.95 : x
  2. Step 2: Convert to fraction form
    673,779.40/1,010,669.10 = 434,630.95/x
  3. Step 3: Cross multiply
    673,779.40x = 1,010,669.10 × 434,630.95
  4. Step 4: Simplify right side
    673,779.40x = 439,268,071,068.65
  5. Step 5: Solve for x
    x = 439,268,071,068.65/673,779.40
  6. Step 6: Final answer
    x = 651,946.43

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Double scale
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Similar ratio
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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.