Finding the Fourth Proportional to 570,916.26, 787,852.38 and 312,780.63
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Solution
The fourth proportional to 570,916.26, 787,852.38 and 312,780.63 is: 431,630.66
Step by Step Solution
- Step 1: Write the proportion equation
570,916.26 : 787,852.38 = 312,780.63 : x - Step 2: Convert to fraction form
570,916.26/787,852.38 = 312,780.63/x - Step 3: Cross multiply
570,916.26x = 787,852.38 × 312,780.63 - Step 4: Simplify right side
570,916.26x = 246,424,963,763.40 - Step 5: Solve for x
x = 246,424,963,763.40/570,916.26 - Step 6: Final answer
x = 431,630.66
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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.