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Finding the Fourth Proportional to 877,307.60, 1,314,211.80 and 456,820.40

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Solution

The fourth proportional to 877,307.60, 1,314,211.80 and 456,820.40 is: 684,319.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,307.60 : 1,314,211.80 = 456,820.40 : x
  2. Step 2: Convert to fraction form
    877,307.60/1,314,211.80 = 456,820.40/x
  3. Step 3: Cross multiply
    877,307.60x = 1,314,211.80 × 456,820.40
  4. Step 4: Simplify right side
    877,307.60x = 600,358,760,160.72
  5. Step 5: Solve for x
    x = 600,358,760,160.72/877,307.60
  6. Step 6: Final answer
    x = 684,319.57

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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.