Home / 877,666.90-1,316,545.92-278,674.96

Finding the Fourth Proportional to 877,666.90, 1,316,545.92 and 278,674.96

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Solution

The fourth proportional to 877,666.90, 1,316,545.92 and 278,674.96 is: 418,026.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,666.90 : 1,316,545.92 = 278,674.96 : x
  2. Step 2: Convert to fraction form
    877,666.90/1,316,545.92 = 278,674.96/x
  3. Step 3: Cross multiply
    877,666.90x = 1,316,545.92 × 278,674.96
  4. Step 4: Simplify right side
    877,666.90x = 366,888,381,594.16
  5. Step 5: Solve for x
    x = 366,888,381,594.16/877,666.90
  6. Step 6: Final answer
    x = 418,026.91

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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.