Finding the Fourth Proportional to 570,915.95, 787,863.99 and 312,802.68
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Solution
The fourth proportional to 570,915.95, 787,863.99 and 312,802.68 is: 431,667.69
Step by Step Solution
- Step 1: Write the proportion equation
570,915.95 : 787,863.99 = 312,802.68 : x - Step 2: Convert to fraction form
570,915.95/787,863.99 = 312,802.68/x - Step 3: Cross multiply
570,915.95x = 787,863.99 × 312,802.68 - Step 4: Simplify right side
570,915.95x = 246,445,967,547.49 - Step 5: Solve for x
x = 246,445,967,547.49/570,915.95 - Step 6: Final answer
x = 431,667.69
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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.