Home / 1,020,430.86-1,408,207.50-561,598.26

Finding the Fourth Proportional to 1,020,430.86, 1,408,207.50 and 561,598.26

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Solution

The fourth proportional to 1,020,430.86, 1,408,207.50 and 561,598.26 is: 775,012.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,430.86 : 1,408,207.50 = 561,598.26 : x
  2. Step 2: Convert to fraction form
    1,020,430.86/1,408,207.50 = 561,598.26/x
  3. Step 3: Cross multiply
    1,020,430.86x = 1,408,207.50 × 561,598.26
  4. Step 4: Simplify right side
    1,020,430.86x = 790,846,881,718.95
  5. Step 5: Solve for x
    x = 790,846,881,718.95/1,020,430.86
  6. Step 6: Final answer
    x = 775,012.71

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Double scale
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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.