Home / 878,681.02-1,317,547.60-398,646.89

Finding the Fourth Proportional to 878,681.02, 1,317,547.60 and 398,646.89

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Solution

The fourth proportional to 878,681.02, 1,317,547.60 and 398,646.89 is: 597,755.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,681.02 : 1,317,547.60 = 398,646.89 : x
  2. Step 2: Convert to fraction form
    878,681.02/1,317,547.60 = 398,646.89/x
  3. Step 3: Cross multiply
    878,681.02x = 1,317,547.60 × 398,646.89
  4. Step 4: Simplify right side
    878,681.02x = 525,236,245,582.61
  5. Step 5: Solve for x
    x = 525,236,245,582.61/878,681.02
  6. Step 6: Final answer
    x = 597,755.31

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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.