Finding the Fourth Proportional to 570,417.91, 787,186.01 and 312,290.53
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Solution
The fourth proportional to 570,417.91, 787,186.01 and 312,290.53 is: 430,966.02
Step by Step Solution
- Step 1: Write the proportion equation
570,417.91 : 787,186.01 = 312,290.53 : x - Step 2: Convert to fraction form
570,417.91/787,186.01 = 312,290.53/x - Step 3: Cross multiply
570,417.91x = 787,186.01 × 312,290.53 - Step 4: Simplify right side
570,417.91x = 245,830,735,084.25 - Step 5: Solve for x
x = 245,830,735,084.25/570,417.91 - Step 6: Final answer
x = 430,966.02
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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.