Home / 749,758.40-1,124,637.60-434,830.40

Finding the Fourth Proportional to 749,758.40, 1,124,637.60 and 434,830.40

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Solution

The fourth proportional to 749,758.40, 1,124,637.60 and 434,830.40 is: 652,245.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,758.40 : 1,124,637.60 = 434,830.40 : x
  2. Step 2: Convert to fraction form
    749,758.40/1,124,637.60 = 434,830.40/x
  3. Step 3: Cross multiply
    749,758.40x = 1,124,637.60 × 434,830.40
  4. Step 4: Simplify right side
    749,758.40x = 489,026,617,463.04
  5. Step 5: Solve for x
    x = 489,026,617,463.04/749,758.40
  6. Step 6: Final answer
    x = 652,245.60

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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.