Finding the Fourth Proportional to 570,423.48, 787,193.70 and 312,296.08
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Solution
The fourth proportional to 570,423.48, 787,193.70 and 312,296.08 is: 430,973.68
Step by Step Solution
- Step 1: Write the proportion equation
570,423.48 : 787,193.70 = 312,296.08 : x - Step 2: Convert to fraction form
570,423.48/787,193.70 = 312,296.08/x - Step 3: Cross multiply
570,423.48x = 787,193.70 × 312,296.08 - Step 4: Simplify right side
570,423.48x = 245,837,506,710.70 - Step 5: Solve for x
x = 245,837,506,710.70/570,423.48 - Step 6: Final answer
x = 430,973.68
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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.